For folks to finally stop using en mass, its going to take (1) a viable, REAL alternative and (2) for the main folks in whatever niche one follows to go to that alternative. That's what it really is, ppl are still their because of the exposure it allows.
But celebs, sports figures and content creators are slowly using less, if not leaving. Musk seems to be making the platform more unusable (not to mention undesirable) day-by-day. That combined with advertisers bailing I don't see how any of this is sustainable business for the long run.