I never understand why people love Mr Beast content. I never enjoyed it.
A) flashy, loud, snippy content that works on people with no attention span or who are easily amused like kids (and annoys everyone else)
And B) clickbait-type, over-the-top content and games that no one else does - the sorts of things that, even if not high-brow, are still interesting. For example, blowing up a Lambrogini appealing to the action-movie lizard-brain, or a giant game of hide and seek appealing to the sort of person who daydreams about how to survive a zombie apocalypse.
Basically, its the peak of broad-appeal, low-brow, high effort/production value media.