I've argued this before, but the algorithms are not the core problem here.

For whatever reason I guess I'm in that very rare group that genuinely watches everything from far-right racists, to communists, to mainstream media content, to science educational content, to conspiracy content, etc.

My YT feed is all over the place. The algorithms will serve you a very wide range of content if you want that, the issue is that most people don't. They want to hear what they already think.

So while I 100% support changing algorithms to encourage more diversity of views, also I think as a society we need to question why people don't want to listen to more perspectives naturally? Personally I get so bored here people basically echo what I think. I want to listen to people who say stuff I don't expect or haven't thought about before. But I'm in a very significant minority.

I might agree that the algos making recommendations on the sidebar might not matter much, but the algos that control which videos show up when you search for videos on Google, and also in YouTube search absolutely do matter.