Earlier quoted context omitted.
The problem is their monopoly power over video distribution on the internet: disgruntled users have nowhere else to go. All alternatives are stifled by the monopoly.
People have tons of alternatives. The problem is that ad subsidies pay more than most viewers are willing to pay after generations of internet users have been conditioned to think of content as free.
It's not the users' problem per se (unless they get aggressively pushed out but then they go to alternatives so that company still doesn't make profit out of them).
Elementary psychology -- one that's studied at 9th grade where I live -- could have told them that it's super hard giving people something for free and then taking it away. People don't react well to that and never have.
They only have themselves to blame.