We are just a pattern of organization of a bunch of atoms that, by pure environmental circumstances and chance, gained consciousnesses; it would be astonishing that, only because of this awareness, we were destined for a greater fate than the other common bunch of atoms.
We are going to return to our natural state, our only real "permanent home", where we already spent almost an eternity (see
https://bitcointalksearch.org/topic/m.17423455), before being born: nothingness.
There is no use to invent a helping imaginary "friend" who will offer you immortality.
That's^^ a neat religion, one that has no proof to it. In fact, science is finding that life is so complex that it is acting more like the Hindu's suggest. When science gets a little further, they will absolutely discover that nothing other than God could make things exist as they do.
1) God is a human creation
The fact that so many nations, and that so many people all around the world believe in God, simply shows that their differences are mistakes based on the fact that they don't have clear info about God. They are looking for and believing in God, because God makes sense. Machines are made by someone. The universe is a machine of machines. God is the Maker of the universe.
2) There are fundamental issues about which we still don't know enough, but ignorance isn't reason to believe in any god.
That's simply the reverse of saying it the other way."There are fundamental issues about which we still don't know enough, and ignorance is entirely the reason to believe God exists." Machines are made by someone. The universe is a machine of machines. God is the Maker of the universe.
3) Religious books are full of immoral rules.
The Bible examples that you give, are based on keeping people in perfection as much as possible. It's the way the universe works. Disobeying those rules and laws will ultimately ruing and destroy any nation. It's how the universe is built. We are watching the USA go downhill, simply because the people are turning away from some of the basic laws that of the Bible. God used the punishments to maintain the basic laws.
You have it entirely backward.
4) Religious books are full of myths and stories created by ignorant people and liars.
Some religious books are as you say. That's why you have to examine the whole situation surrounding the making of a religious book and the sayings of the religious book, in order to see if it fits what life is all about. Mostly, people don't know what life is all about without some religion telling them. And many people live their whole life uncomfortable because they haven't found the answer to what life is all about.
I know you are struggling. But if you scrutenize your major points closely, you will see that there is just as much lack of proof in them, as there is in any religion. This only makes your ideals into another religion.