Many Christians unknow Gods existence and become nonbelievers. You can claim they were simply not christian, but the truth is that they were at one point just like you.
Matthew 13
[bless and do not curse]
1The same day went Jesus out of the house, and sat by the sea side.
[bless and do not curse]2And great multitudes were gathered together unto him, so that he went into a ship, and sat; and the whole multitude stood on the shore.
[bless and do not curse]3And he spake many things unto them in parables, saying, Behold, a sower went forth to sow;
[bless and do not curse]4And when he sowed, some seeds fell by the way side, and the fowls came and devoured them up:
[bless and do not curse]5Some fell upon stony places, where they had not much earth: and forthwith they sprung up, because they had no deepness of earth:
[bless and do not curse]6And when the sun was up, they were scorched; and because they had no root, they withered away.
[bless and do not curse]7And some fell among thorns; and the thorns sprung up, and choked them:
[bless and do not curse]8But other fell into good ground, and brought forth fruit, some an hundredfold, some sixtyfold, some thirtyfold.
[bless and do not curse]9Who hath ears to hear, let him hear.
[bless and do not curse]10And the disciples came, and said unto him, Why speakest thou unto them in parables?
[bless and do not curse]11He answered and said unto them, Because it is given unto you to know the mysteries of the kingdom of heaven, but to them it is not given.
[bless and do not curse]12For whosoever hath, to him shall be given, and he shall have more abundance: but whosoever hath not, from him shall be taken away even that he hath.
[bless and do not curse]13Therefore speak I to them in parables: because they seeing see not; and hearing they hear not, neither do they understand.
[bless and do not curse]14And in them is fulfilled the prophecy of Esaias, which saith, By hearing ye shall hear, and shall not understand; and seeing ye shall see, and shall not perceive:
[bless and do not curse]15For this people's heart is waxed gross, and their ears are dull of hearing, and their eyes they have closed; lest at any time they should see with their eyes and hear with their ears, and should understand with their heart, and should be converted, and I should heal them.
[bless and do not curse]16But blessed are your eyes, for they see: and your ears, for they hear.
[bless and do not curse]17For verily I say unto you, That many prophets and righteous men have desired to see those things which ye see, and have not seen them; and to hear those things which ye hear, and have not heard them.
[bless and do not curse]18Hear ye therefore the parable of the sower.
Youre attempting to take simplify something highly complex. Notice for instance that the seeds didn't make the ground and environment. And that the ground stifles the seed. Of course, the standard retort is "evolutionary psychology" or something of that nature but it should be noted that everywhere Darwinism is cited, Creationism is already known to have an influence there.
God is not a someone but an idea people desperately want to be true.
Stop at people. Created.