Alceste
Vagabond
I do believe that sometimes atheists are not sincere and reject religion on the account of rejecting one religion. They believe god is seen only through one pair of eyes.
I try welcoming atheist to open theism or deism as much as I can because I fear that perhaps they have no tried anything else. BUT if an atheist is sincere and has indeed tried religions and lack of religion then that is all that can be done for them and they must be happy.
Believing in God does not make people happy although it can. Believing in yourself can do just the same as well if you are confident enough.
Why do I have to try a bunch of religions before I can be sincere? I know they're not for me already. It would be quite insincere of me to "try" them knowing already that my disbelief in supernatural claims will not be budged.