I told him to log off. I told him to find friends in-person. He refused. When you have in-person leftist friends, it's harder to hold onto the brainworms because there are actual social consequences other than being banned (which you can get around by making alts). It's why isolation can be a problem for leftists and why you have to work on your social anxiety. Though I suspect some of the anxiety he was experiencing was caused by feelings of being a bad leftist if exposed to other leftists. They would have found him out, pushed him into confronting his brainworms, and then he would have had a meltdown like this. That's really what the fear was, not talking to other people.
Don't isolate yourselves. Seek others.
The game lets you become a god with the prawn suit. There's no need for a gun.