all this arguments are only used in a response to yours. So you need to present yours first.
I will address your arguments after presenting mine here again (thanks for the chance to do so

).
On the issue of proof, my personal belief is that God has set things up specifically so that no single person can conclusively prove his existence for the whole world to see.
It is consistent with God's desire to find people who want what he has to offer more than anything else in the world, including their own comfort and/or lives.
That element of sincerity is taken away when the truth of his existence is irrefutably shoved in our faces. People will acknowledge him because they have no other choice, rather than because they choose to.
But, for the sake of making my point, lets say that God did give a piece of himself to the scientists of the world to put into a little test tube so they could heat it up, spin it around, dissect and break it down to finally prove once and for all that he is real.
Then what? What about his teachings? Would you be willing to do what he says? Would that be because you genuinely believe in the reasons behind the teachings, or because you feel you would have no other choice?
To test those questions, we need only look at the teachings of Jesus. If you feel you could follow Jesus' teachings based on the reasoning behind the teachings, then it makes no difference whether God is real or not, because it's the reasons behind the teachings that are the point.
If you feel you could not follow those teachings, even knowing without any doubt that God is real, then what's the point of knowing he is real if you're just going to ignore him anyway?
Jesus faced a similar issue in his journey regarding miracles. After once occasion of miraculously feeding people who had gone for days without food to listen to him, he quickly ran away because the people were so impressed that they wanted to make him a king.
When they found him again, he rebuked them because they only cared about eating the food (i.e. what he could do for them) and totally missed the point of thanking God for the miracle. They wanted to make him a king because they felt they could get something from him.
This also happened with the phraisees. Miracle after miracle failed to convince them because in the end it wasn't proof of his divinity that they were interested in; it was his teachings. They hated what he was teaching, because he challenged the religious leaders, their organization, their government, and even their own race and country.
That inability to accept his teachings blinded them to everything else he tried to show them.
It's why he said that people won't even be able to see his kingdom unless they listen to his teachings and DO them, because his kingdom IS the application of those teachings.
In other words talk it cheap. If you want proof, you have to earn it. Just how hungry and thirsty are you?
There are 3 "rules" for a law or something else that can't be proven or seen to exist:
Where did these rules come from, who made them? Can they be found in any books and if so are you suggesting those books are infalliable books, much like Christians (though not me) claim the Bible is infallible?
How do people know to stop at only 3 rules? Does your assertion that there are 3 rules (i.e. stated as a fact) exclude the eventual discovery of a 4th or 5th rule?
If not, then is your science complete, and if not then is it really scientific to use science to suggest that things which have not been discovered yet cannot reasonably exist?
a) It can be used to predict future events: for example, gravity - even tho it can't be observed - allows me to know for sure that if I drop a key, it will fall down
Is there ever a situation where the key would NOT fall down, according to your prediction? How did people explain gravity before they knew about gravity? Was there anyone who was also "sure" about explanations which history shows were not particularly accurate regarding their understanding of science?
b) Its effects can be seen in Nature: for example, even tho we have never been in the Sun to feel its heat, we know it's hot due to the radiactions and the effects those have in our planet.
My understanding of the odds of everything in existence coming together the way it has by accident is apparently extremely, super duper, extra fantastically low.
All of nature suggests some kind of intelligent design (whether you feel it happened according to the Bible's version of a literal 6 days or a longer version of billions of years).
c) It is necessary in some part of the Universe: for example, in the Quantom World, we know it's needed a Super Force to keep the protons in the nucleum. Even tho we can't see it, we know it has to exist because otherwise, athoms wouldn't exist either.
"Super force"? I don't understand what you mean by that, but okay for the sake of your exmaple, where did this super force come from? Where did atoms and protons come from?
Tracing it all the way back as far as humans have been able to even theorize, they eventually get to a "singularity" from which everything else in existence came from. But the same question remains, where did the singularity come from?
It seems that people created gods and not otherwise: people who are understandable and understandable god. People who are agressive believe in an agressive God, etc. It should be consider that a god should differ from human beings in a way that humans couldn't, without a doubt, create him. But this isn't the case.
Yes, i agree that humans have the tendency to create explanations for existence which suit their personal biases; it's certainly not limited to religion.
The same could be said for scientific theories. History is riddled with such abuses, but we don't say that this disproves science altogether.
But following from your theory, If you read the OT you will see that over and over and over and over again the God of the OT expressions frustration with his creations at being so selfish, greedy, stubborn, proud and just generally faithless to him.
This hardly seems consistent with what you are saying about people who make convenient God's for themselves.
A similar theme is expressed in the NT as well where people just can't seem to understand Jesus' teachings simply because he was teaching something so incredibly different and opposed to what most people are used to, especially concerning areas of self preservation and greed.
It is not normal to forsake material wealth and it is not normal to lay one's life down for others, especially in a situation where you may be doing so for people who won't even appreciate it anyway.
Something bigger than basic animal instinct inspired these teachings.
The problem is agravated when this contraditory believes create several contraditory religions whose Gods cancel each other, and even contradictory doutrines and believes within the same religion (for example, depending on the interpretation and the personality of a person, they may believe that the Christian God is bad, or good, or the creator of the Universe, or created after the Universe, even tho they are still Christians).
The exact same explanation can be applied to all the various theories in the science world, or are you suggesting that there are no contradicting theories in science?
If you use this explanation, you must be willing to apply it across the board, and not just to religions; otherwise it betrays a bias on your part and is not scientific at all.
Those religions can't be all right, but they can be all wrong. With so many contradictory believes, belief in a God is still unreasonable.
Just because we have suspicions that something COULD be wrong is not rational grounds to conclude that something IS wrong.
An assortment of contradictions is NOT grounds for disproving a theory. It simply means that each contradiction must be assessed and tested one at a time to discern where the real answer is amongst all of them, if there is an answer.
For example, lets say I ask for lunch at 12oclock. One person thinks I mean 12am and another person thinks I mean 12pm. Over here in Kenya they measure time a bit differently by adding and subtracting 6 hours depending on the time of day, so 12 would actually be 6.
So out of the three, which is it? Let's make things even more complicated by suggesting there are people who don't want me to have lunch because it will affect their schedules, or because they don't want to do the work involved or they just don't like me or they think I'm not really talking about lunch at all, but some kind of gardening project for growing food, etc...
Do all these contradictions prove that I never asked for lunch? Obviously, the best way to know what I actually said is to ask me.