Speculating it's because (previously) the recommendation system was heavily tuned towards novelty. Once you watch a video (or channel) which opens up a new part of the network it gleefully pushes a disproportionate number of videos your way.
So I watched a few videos from Derek of "More Plates More Dates" about body building/steroid use and sure enough I was getting various Jordan Peterson videos, some "why x woke thing is killing hollywood" and even some repackaged Andrew Tate stuff. It's like an excited friend who hears you enjoyed Watchmen and has hundreds of comics to recommend. Except it's much less pleasant.
The novelty bias occurs outside of YouTube as well. I was walking in London a few years ago and an old guy asked me for directions to the local mosque. I had to look it up on my phone for him and for a couple of days I had recommendations about other mosques/muslim bookshops I might want to check out.
So I watched a few videos from Derek of "More Plates More Dates" about body building/steroid use and sure enough I was getting various Jordan Peterson videos, some "why x woke thing is killing hollywood" and even some repackaged Andrew Tate stuff. It's like an excited friend who hears you enjoyed Watchmen and has hundreds of comics to recommend. Except it's much less pleasant.
The novelty bias occurs outside of YouTube as well. I was walking in London a few years ago and an old guy asked me for directions to the local mosque. I had to look it up on my phone for him and for a couple of days I had recommendations about other mosques/muslim bookshops I might want to check out.