People won't leave Youtube if it becomes impossible to block ads?

Youtube knows they got people by the balls and that most people won't leave the platform. Most people say they will leave Youtube if they can no longer block ads because of the Server-Side ad injections, but I think if push comes to shove most people will cave and buy premium or just deal with the ads.

I think Youtube would have to do something really drastic for people to leave in large numbers. Youtube would have to have 5-10 min. unskippable ads and raise the premium membership to 100 for people to stop watching Youtube.