//1) Horrible ideologies and insane rulers caused that harm, not …
//1) Horrible ideologies and insane rulers caused that harm, not atheism.
Oh, really? But religion gets blamed for every single bad deed done by anyone who identifies himself as “religious”. You can’t have it both ways.
//2) You don’t have to believe in god to have a good sense of morality. It’s a pretty simple thing to figure out in most cases. What intentionally hurts others is bad, what helps them is good.
Why? Why is it bad? For whom is it bad? If it helps me how can it be bad (in an atheist world)?
//3) I don’t need to believe in santa claus to have fun at Christmas, therefore I don’t need another fake guy to believe in to have a good life.
No one claimed otherwise. A lot of bad people lived great lives.
//5) To declare there is a God necessitates you know everything about the universe.
To declare there isn’t necessitates the same. That is why we say we “believe” in God.