YouTube alternatives sound great until you actually try them.
The best exemple is when youtubers leave for reasons related to monetization. They always came back when they foud out that not only do other platform don't pay them (without a pay wall) but good platform will actually charge them for the hosting. finding your own ads is also really fucking hard when google isn't doing it for you.
Free unlimited 4k@60 video hosting is a hard to beat when users are extremely hostile to paying for thing they used to have for free (look at the feedback from. Youtube premium)