I'm not even religious but I understand the value of religion within a society. Even if you read books like The Righteous Mind by Jonothan Haidt, even him as an atheist concedes that religious people are more generous than their secular counterparts whether to religious or non-religious organizations. Also more involved within their community.
It seems like anti-theism in the West is anti-Christian. While I have questions regarding Christianity, many atheists can only concede if that they are unsure, but a lot of New Atheists take the stance that they know there is no God, but to have that you'd have to have omnipresence of a God to find that out but no man has that. If I take away my religious uprbringing and my "spiritual" view on God I can concede that being agnostic makes the most sense.
I do question if atheists believe that destroying religion will make society overall better. We see that society is becoming more secular and we see the destruction of the family unit, rising suicide, lack of community, distrust of one another, mass shootings, etc. While I cannot prove God does truly exist, or what "God" is, I act in a manner as though I have full certainty he does.
I'll also say that I know religious folks can be crazy in their dogma, but it seems I've ran into more antagonistic anti-religious people. The last girl I was casually seeing (which I put in the 'casual' category fast) was an ex-Evangelical. IMO it seems she was raised in a cult but I didn't have the frame of reference because I wasn't raised in that environment and I was also Catholic and I tend to hold a more "spiritual but not religious" ideology. It seems as though she would bring up the conversation of religion up more and try to challenge me on it given her upbringing. It was sort of annoying and that was one of the things that we differed in which prevented something long term to happen.