Come up with contrived BS that caters to younger audiences, micromanage anyone who is holding you up, and attempt to game a blackbox algorithm on a site you don't pay for (YouTube)
The whole modern social media / influencer sphere seems like a huge bubble that will pop eventually. Google has already started wiping inactive accounts[0] presumably because storage isn't truly infinite or cheap. I imagine YT will also take the same path eventually.
0: https://support.google.com/accounts/answer/12418290?hl=en
But MrBeast does pay. He pays for it with every video, because YouTube keeps 45% of the ad revenue for it. If he receives ~$300,000 for a video, YouTube has kept another ~$300,000.