Well, Eric, I thought I kinda done explained alla that. The belief is just a startin point. Belief in God doesn't gitcha to some Thomistic catholic doctrine--ya gotta work at it.
Absolutely. Unless you actually are a Catholic, of course. Then you don't merely accept plain theism, you have incorporated an array of beliefs about the Bible, the Church, and the nature of life. I thought we already agreed plain theism was not much of a religion.
Once you identify yourself as an "atheist," certain paths become open to you, so it's a startin point. Now you can be taught to HATE theists. Now you can make a devoted career out of ridiculing them, and resolving to undermine every goal they may seek. That takes dedication and devotion...eternal viligence and commitment, if you're a "true believer." It kinda gives ya a day-to-day agenda, and all, see?
Very few atheists hate theists, or even religion. Most just want to be not judged morally inferior because of their lack of belief. Not to mention there are several religious people who also oppose the goals of various religious organizations. If you honestly think most atheist organizations are dominated by a hatred for theists, you might have a persecution complex.