Sure - channels absolutely used to be downvote bombed because people were mad at the content creator for whatever reason they may have had. But for a good section of videos the downvotes only spoke about the quality of the video itself and nothing about the content creator.
It's not about hate, it's a signal that the video is probably going to be a waste of time for the watcher.
There’s also disturbing “children’s videos” made by AIs, and fake lifehack or cooking videos that promise things like “if you microwave popcorn with M&Ms you get chocolate covered popcorn”, some of which show dangerous things that have resulted in accidents (e.g. people getting burnt with exploding eggs and the like).
Since when is a downvote equivalent to hate?