I don’t think that’s necessarily true. What I do think is true is that there’s a chance some AI thing will be a trillion dollar investment, and the most motivating thing for VCs is fear of missing out on a giant score.
A nonprofit open source profit ought to have different motivations though.
It’s kind of not. It does appear to be at least theoretically possible to self-host any or all of the major components. Unlike ActivityPub projects, however, it doesn’t seem like anybody is doing that and offering services to the public.