This is a whole thing. There's been research that shows that if you just randomly follow videos on YouTube, you'll more than likely end up at hard-right talking points. There's also a deliberate effort by Nazis to build a propaganda pipeline, particularly on youtube. Adam Something did a good video on his own personal experience with this.
Oh, definitely don't watch them. But if I see a title/thumbnail that looks iffy, I check the channel page and block the whole channel if I don't like the look of it. Only way to keep that shit from overwhelming the whole feed.