Earlier quoted context omitted.
I don't know what subculture you're living in, but in several of mine there absolutely is pushback against this, with people avoiding consuming this kind of content and trying to prevent their children from consuming it, too. Now, the question why the larger US (or English-speaking) culture isn't uniformly doing the same is much more interesting, but there's no known reason for this and most of the common explanation…
It's not English-speaking community specific. In every language I can speak, I can think of an equivalent of MrBeast for that area. Maybe a majority portion of the entire world's population actually enjoys that kind of content. Nobody in my friend group enjoys that, but looking at my nephews, they're all going crazy about it. There are going to be people who grew up with him for almost a decade, and that's a crazy am…
It's very interesting that the phenomenon itself is multi-cultural, though. Or maybe it's internet-cultural? It's probably tied into the nature of human beings and people exploiting that.