Any atheist that knows about theism is an antitheist. Otherwise, they would believe in God. They might very well not be able to believe in God, yet think that there is nothing wrong with belief in God, but that is misleading. For if one knows what is to believed and yet doesn't believe in it he isn't convinced that it is true. Any claim we deem as false is deemed bad by our brains. This was scientifically proven. Any time you think about something you deem to be false, you feel something resembling disgust or malice(or something along those lines, I can't remember the qualitative aspect of it for sure).
Any atheist that claims to not care about the fact that most people are theists, beyond what directly concerns them, is either lying or a psychopath. Of course, they could also simply be confused about it, which is a form of lying in itself.
Any atheist that claims to not care about the fact that most people are theists, beyond what directly concerns them, is either lying or a psychopath. Of course, they could also simply be confused about it, which is a form of lying in itself.