He did a 180. He had written some wonderful Christian apologetics at university https://marxists.catbull.com/archive/marx/works/1837-pre/marx/1835chris.htm
I know and that’s what I mean. People, who typically lose their belief, will just stop believing without being hostile. It usually takes somebody who is bent on revenge to go from being a devout Christian to a devout Satanist. He became angry with God over something.
In my experience, it is either due to personal trauma, repressed homosexuality or drugs that do that to you.