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.