I've had success with just blocking these channels, or selecting "don't recommend this to me", after a while it stops suggesting right wing content to me, it hasn't for quite a while in fact.
Also, at this point the suggestion algorithm seems close to worthless. My Youtube suggestion feed is either channels that I already follow, or whose videos I've watched recently, or complete garbage. Any worthwhile new channels or videos, I've have to seek out for myself.
That's part of it, but I'm certain there's more to it.
I've seen too many people and pages get their reach cut 100 fold over the last 7 or so years. The content was very engaging, had lots of likes and comments, then boom, they all started going from 5 or 6 figure posts down to 2 and 3 figures. Marianne Williamson, for example, hit 10% support nationally - then her Facebook posts went from 6 figures to 3 in a day.
Take Gaza, and the global calls for a ceasefire. Despite huge engagement, and the strong support of the vast majority of every countries population (bar Israel itself), I've seen virtually nothing about it on Facebook. On LinkedIn I've seen 1 single post concerning it since October 7th, and it had 0 likes. That's not natural. No fucking way.
Eventually, it does.
Or, I make one mistake, rando-click on something favorable and boom! They are back.
You can watch "adjacent" content—at least according to YouTube—and you'll be fed Ben Shapiro and Jordan Peterson.
Even if you wanted to see that content, maybe that's as far as you're willing to go, personally. Too bad! You get even more extreme commentators.
For you.
For kids it brings up amputation videos and seriously weird/predatory shit. Should they be cultivating their recommendation feed better?
Try searching for '!' on the homepage. You'll get a mix of kid videos and fucked up animated softcore furry shit. It's been like that for fucking years.
For me it brings up Ben Shapiro and Jordan Peterson shite constantly, despite my refusal to engage in such content whatsoever. It just figures, hey you like watching video game content so you'll love these smarmy shitheads.
It's vastly inferior to TikTok's algorithm by all accounts, like it's not even close. And it's been horrendously gamed.
All they have is the network effect and Google's monopoly powers. Their algorithm sucks, their ads suck, their policies towards creators suck (as you said yourself). Everything they've ever brought in that was actually good was cribbed from porn sites.