That's great that you've figured out all the problems of the world, but I was simply answering "what have they done" to a mis-characterization that they are simply time-wasting machines.
They are time wasting machines. YouTube is, and Mr. Beast's production company is by virtue of the fact that it would die immediately if YouTube went away, because nobody would buy that shit in a theater, on a blu ray, or in iTunes Store. Same reason TikTok and it's associated content is also bullshit, literally the only reason anybody watches that garbage is that it's free.
I bet you don't apply this level of rigorous criticism to books or musicians, even though they occupy time that could be better spent curing malaria or arguing about Ukraine on the internet. Why not?
I'd argue it's more than "that it's free", it's that it's tuned to push our buttons. Specifically, it's designed to engage (e.g. generate enragement, outragement, or some similarly powerful emotional response). And the only barrier to getting a hit of this emotional stimulant is a mere click.
