Earlier quoted context omitted.
Your first mistake was thinking that you are the user they care about serving :p
Oh I know, I am pretty cynical and not exactly outraged here. But although they don't care about what's good for us, they do care about what will keep us on the platform. And if it gets harder to find good stuff and filter out the dross, that could conceivably have negative consequences for YouTube in the long run.
Nothing proves you have a worthy argument better than outright hiding from dissent.
Again, they don't care if you stay on the platform. If they did, they wouldn't touch it. The disagreement buttons were added in the first place because they increase and maintain engagement. After a few decades it's now all the sudden a problem?
Ha! The real problem is their desired narratives are being soundly rejected and it's embarrassing. So here we are.