I do wonder if people like Boo are enjoying the publicity it brings them a little bit too much.
Do you? Do you really think that Boo, the one person who has been completely fair, honest and calm, with absolutely no loss taking and just stating the facts as she finds them, is enjoying it?
He is getting worse and worse but also richer thanks to them. If everyone unfollowed and took away his platform he would just go back to being a creepy unemployed bloke living with his dad. He couldn't make the weird lives if nobody watched them.
No but he would still be what he is, only nobody would have a clue. The money is irrelevant, the key thing here is that he is exposed to protect others from him.
Where are all the friends and family of these girls he meets and why aren't they warning them off?
That's a great question, although you seem to be framing it in a 'blame' manner, rather than relating the ones with not friends and family are the vulnerable ones he goes for.
A quick google search leaves you in no doubt that he is a professional pervert and not quite right in the head, but they still contact him.
Yes, absolutely their fault 
I'm sure they actively seek him out because they know it is a quick way of getting tens of thousands of followers overnight.
It's a shame they don't shut down his TikTok account completely.
Have you ever heard of grooming?
Your post is littered with victim blaming and pervert apologist shite. Have a think about who is to blame here, it isn't the vulnerable young women. It's the predator who targets them.
How dare you try to suggest otherwise.