What you’re saying is true, but misses the point. Yes, larger content creators can get sources of income besides advertising. However, the whole point of youtube is to let anyone big or small get started. Small creators can’t get started if they don’t have a source of income. So that’s where the advertising comes in.
In a sense, twitch builds upon the success of youtube. They took large creators who could get the $5 subscriptions on to their platform. But this only increased the need for youtube to court advertisers.
In a world without advertisers paying content creators, our options would be severely limited. We want small upstarts and cutting off their source of income is a terrible idea.
Unfortunately, our world requires the necessity evil of youtube doing whatever it can to stop ad blocker. No matter how nice it is. And if you as a user are satisficed with the limited content from large creators, as you said, there’s always twitch.