Hi! I'm new here, came searching for another kind of social media, just like you describe. I agree with you but still have some doubts about how people could adapt to new options. There are examples like Mewe, Vero, Minds, Ello and Sapien, which were (and some of them still are) trying to pose as alternatives to centralized social media, however unsuccessful until now.
Hope we'll find a way! Thanks for your post