I’m under the impression that Google deliberately hinders their YouTube platform just because you have ad-blockers. With videos taking time to buffer, seems to signal this, because it almost makes up nearly the amount of time for when ads take if you had to watch them. So since you’re ad-blocking and they don’t like that, they’ll make your experience miserable until you want to pay their service or not use ad-block.
You have a dedicated IP? Can’t you change it?
On my phone anyway, I looked into changing it, it’s complicated, there are a bunch of IP’s but the one they use is set by your isp, as I understand it.
I searched this brazillian firm that has me on it, and found other people that did nothing from their computers on it, the company demands personal information and money to get off their list, and threatened at least one of their other victims with worse when they complained.