I watched some of one video whose content would be described as a cute cat video. It was mainly cats playing around.
YT’s algorithm seemed to think that I needed to keep being exposed to this, so filled my recommendations with more cats.
Like the parent, it has taken over a year of me choosing ‘not interested’ for YT to stop trying to persuade me that I should like most cats and actively seek to pet furry critters who are different from me.