Frankly I would feel much more at ease if we could all decide that Youtube doesn't get to decide what content should be deleted, provided they also can't keep recommending videos. Let me explain.
By recommending videos youtube has a huge amount of influence on what content is promoted and what content isn't. However youtube's bottom-line isn't to recommend good content (despite what they claim it is) but it is to maximize ad revenue, which means they need to make people watch as many videos as possible. Superficially this would seem like it should drive Youtube to recommend good content, but it's beginning to look like it is biased towards addictive content, which has questionable quality at best, but might veer towards harmful conspirational theories at worst. It's a classic example of value drift, Youtube has turned into a paperclip maximizer that is beginning to harm humans to produce more paperclips.