If I were in their shoes, I'd make him spit out innocuous content while making a documentary that serves two, maybe three purposes:
1. SEO the shit out of Boogie so it's the first thing you see when you Google him
2. Reignite conversation around him that's neutral-to-positive
3. As a bonus, frame my own agency as a place that can bring even the most useless beached whale out to sea. If you can salvage Boogie, you can salvage anything.
Once you've solved his SEO and made sure the last few months of uploads aren't shit-stirring, you've put enough lipstick on the pig than places too dumb to vet properly (a lot of smaller companies) or too swamped to spend time (Raid, NordVPN and the countless other machine gun influencer strategy companies) will take him as a good deal if they can't read analytics properly and just look at his sub count.