He's probably the most high-profile example of someone completely ruined by social media. He seemed like a lovely bloke back in the day, and you only ever heard good things about him, but he's latched onto a cause, taken on this role as some sort of moral crusader, and been radicalized on Twitter over years. Having said that, have you actually seen what he was arrested for?
I mean it's obviously a joke. A distasteful one perhaps, but can you genuinely make an argument that it's inciting violence? Although slightly ironic given that he calls a trans woman going into a female space a 'violent act' in the tweet.