I've used YouTube for many hours per day for several years. I've almost never seen a single thing appear on my home page that was polarizing or even clickbaity. The very rare times I do (always after I watch something that's kind of adjacent), I just click "Not interested" and I never see it or anything like it again. It's done a pretty good job of predicting what I would and wouldn't be interested in.
Same with Twitter. I just unfollow anyone I find tweeting polarizing or charged things. My Twitter feed looks pretty close to the HN front page.
Many people crave these things, whether they want to or even realize it. I think it's going to be this way for a very long time.