So many people have figured out how to "game" the algorithm to get their videos to rank higher and be more likely to be seen. The algorithm can't tell garbage content from good content. It just knows a lot of people viewed it and it hits all the right keywords.
Coincidentally I was just looking back at
this article last night which talks about a similar thing, except with kids' videos (we discussed this article on here before). But at the end of that article, he does say that he thinks the same thing that is happening with kids' videos is happening with ALL videos.
(One thing that was interesting is a lot of the kids videos he referenced in that article were purged by Youtube since then, and he updated the article a bit. One of the channels they completely shut down was the #68 ranked channel in traffic on the entire platform. And all it did was create garbage videos that gamed the algorithm.)