His problem has a very easy solution - log off, stay off social media, keep your head down and don’t go live to ‘address’ anything, don’t call the police and be picked up very publicly. If he genuinely wants the attention to stop (which I don’t believe he does) then staying offline is all he needs to do. Then sooner than you think he’ll be forgotten. Out of sight out of mind is very powerful on the internet. His video parody-tiktokers will find someone else to make content about and so on.
Anyone with a half decent head on their shoulders would be laying low and having a serious think about how they can rebuild their sad life, not posting dramatic Instagram stories and using the police as their personal Uber.