On Twitter and Reddit, the users most affected were also the people providing most value to the platform (tweets, reddit submissions, discussion, moderation). They're fairly symmetric platforms.

On YT, the people providing the value are the content creators. That is the same content creators who get a revenue share from ads and premium. They're the ones who benefit the most from blocking ad blockers. The people watching videos with ad blockers (and sponsor block)? They're not providing anything in exchange, to the platform or the creators.