I'm always fascinated when people claim YouTube pushes content like this. It's an extremely common take, but I don't think it's true.
My experience has been that if I stop clicking something, the algorithm soon stops recommending it. It occasionally brings back a blast from the past--e.g. I watched a sumo competition once, and once in a blue moon it recommends another. But you can downvote bad recommendations, and I simply don't get recommendations for ideas I've never engaged with before.
FWIW I'm not saying the algorithm is great. My feed is absolutely worthless right now, but it's all goofy Japanese content because one of my kids is extremely into that right now. There's zero political content because she isn't showing any interest in it. Heck, most of the stuff isn't even in English anymore.