It is impossible to use subjective feelings or views to determine morality because there is no objective basis.
This is a good post to talk about. This is how morality works even though it's subjective. You and I both start with the same premise:
I ought to be happy.
You claim that it is objectively true but you can't prove it. I accept that I am assuming it is true based on a logical fallacy, i.e. Appeal to Emotion. It isn't true, but I'll assume it's true and I won't care that it can't be proved.
So you think it's true, and I assume it's true, and we both act in the
exact same manner as a result. We both build the
exact same morality based on reasons we
can prove.
For example. Because I have empathy, I feel bad when I'm surrounded by people that feel bad. So if I act in a way that causes people around me to feel bad, then I will be unhappy. We can state these things objectively. They aren't moral statements yet. I'm just describing things that happen.
It becomes a moral statement when we say "Therefore you ought to not cause people around you to feel bad". Our argument will look the same:
P1 I ought to be happy
P2 Causing others to be unhappy will cause me to be unhappy
C I ought to not cause others to be unhappy
Totally valid argument. You claim it is sound, I claim it is not sound because P1 is not true. But I
assume it is true, and therefore act in the
exact same manner as you. For instance, consider this statement:
If I leave the house tomorrow, I will be hit by a bus.
No one knows if it is true or false. If I knew it was true, then I wouldn't leave the house. But I'm going to assume it is false, and I'm going to act in a manner in exact accordance with it being false because I am going to leave the house.
Whether the moral statement "I ought to be happy" is true or false doesn't matter when I assume it's true.
Thats a logical fallacy in that because that it cannot be objectively true when it possibly could.
First of all, what I said was true. If it was false, which it isn't, it isn't a logical fallacy to make a false statement. That's not what logical fallacies are. Logical fallacies are errors in reasoning.
If so the same case can be made for objective morality ie "I acknowledge that torturing a child for fun is morlaly good cannot be true therefore I ought to not torture children.
No, not really. I could tell you how it works, but you'll probably just argue with me as though I don't know what I'm talking about, so I won't bother.