Why are most of the Atheist I've met are lacking love in them and most had a bad experience in their childhood?
Do you know this to be a fact? Or have you just assumed that because they are atheist?
Is that the reason they are angry with God and religious people
Most atheist find it hard to be angry with something that they don't belive exists. It's like you being angry with Fred Flintstone. As for being angry with religious people... that has more to do with the person rather than just being mad at them becase they are religious, and the majority of atheist are not angry with religious people period. You assume too much about the motivations of others.
And have become thick and dont want to listen to anyone?
Speaking for myself, I don't dismiss religious claims out of hand, I dismiss them because of lack of evidence.
And then they stopped relying on God and thought of making things work on their own.
That's because if you sit around waiting for magic man to do something then it never gets done.
Thats fine if they did that
So why are you bitching about it then?
but they should not make people like them who are already happy being religious and are proud to be following their religion
No one in the entire course of human history has made another person an atheist. You cannot change what someone else thinks or belives. If a formerly religious person deconverts and becomes an atheist then it is because that person as realized that they think the whole "god" concept is a crock of shit, and not because they caught "the atheism".