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.
This comment is loaded with 'well meaning virtue' but ultimately it does more harm than good. You're taking it away because some celebrity you like got sad because their video got disliked? Bloody hell.
Removing the absolutely needed and valid functionality that is normally used to signal the quality of the content, and save viewers' time, for all users and all cases, should not be the justified sacrifice, just in order to mitigate one bad way to use it.
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?