Atheism wouldn't require much of a tweak. Humans are social animals, and we seek out groups based on one or more similar interests/features. For many people who were religious, the 'atheist community' becomes a seemingly logical way to fill that role, so it becomes a surrogate religious community for them. Some will break away from that once they recognize it. I didn't want to get back into a religious community, I was happy to be free of it. I'd spent far too long proselytizing for a religion. The last thing I wanted to do was proselytize to get people out of religion.
You can see from some of Evans's posts that he is still in that part of it. He is still actively rejecting religion, instead of being free of it. He's also embracing the political side of the 'atheist community.' If you're not pandering to the extreme left, you can have a pretty rough time of it, so he's gone all-in. Whether that will be enough for them to overlook his treatment of women... let's just say he may be in for a bit of disappointment.