It really amazes how how Youtube refuses to let me hide stuff I don't want to see on my homepage. I still long for the ability to tell them to not give me mix playlists, I do not want them, and often they annoy me when the first song is one I'd click on but I don't want to have to pay attention enough to kill it before the next song plays (since you cannot disable play next in playlists...)
If you have uBlock Origin installed, the subreddit wiki for it has lots of options for blocking stuff on YouTube.
https://old.reddit.com/r/uBlockOrigin/wiki/solutions/youtube
You see, you think you don't want all those things, but the algorithm knows better. Trust the algorithm!
I so hate the videos YouTube shows me that I wrote a plugin to place a white box over videos called TubeGate [0], which I open-sourced [1]. It does keyword-based filtering so you can tell it to hide "sports", "politics", etc.
[0]: https://chromewebstore.google.com/detail/tubegate/aokfpmegea...
It's not a product where you are the user. Your attention is the product being sold to advertisers and the videos are a harvesting/production mechanism.
It is not in the interests of either YT or the advertisers to allow you to opt out of features that are proven to be lucrative for eyeballs.