I watch a lot of YT videos.

I subscribe to plenty of content developers, and I get a lot of suggestions from those and similar. They mostly make sense. Gun content, physics, stock trading, muscle cars, Aggie football and anything else A&M, science fiction, music (especially guitar related), fishing, hunting, and some others... I get plenty of stuff that I appreciate as suggestions.

There are two things I can't seem to get rid of, though:
I do like to watch court related content. Sometimes breakdowns of court cases (especially Supreme Court rulings and arguments). But I get SO many "sovereign citizen beatdown" videos in my feed. They're all created 1-3 days ago, and uniformly have under 2000 views. I click "Do Not Recommend This Channel" on all of them. But every time I open (or refresh) YT, there are 3 or 4 more that I have to whack-a-mole on. What's the real way to convince YT that I don't want to watch these AI-generated pieces of crap?

Also, I get a "Topic" of Star Trek short clips repeatedly. I love ST:TOS, and will sometimes watch a video that's offered up, but I rarely watch anything from any other ST series. Okay, I get why they show me 7 of 9 and/or T'pol, but why would they offer up so much non-TOS ST content? I don't think I ever click on them (with the 7/T'pol caveat). I always dismiss the entire topic, but it keeps coming back.

I know, 1st world problems!

review your history. If the video accidently autoplays because your cursor was over it or whatever it will count as watched. delete anything you dont want and it should clean it up.

you can also report things which should remove the channel from your feed.

If auto play is the issue, turn it off!

Youtube will also look at your web activity (google searches, web browsing history, etc.) to build its algorithm. Try clearing your google activity and see if it helps.

Or you can just nuke your Youtube history.

Will try some of those, thanks