Normal people don't mind the billionaires as long as they're not intentionally pushing fascist content. They want a product that they don't need to understand to be able to use.
Regular people don't care about billionaires or their data or decentralization, the only reason they care about Musk in particular is the fact that he openly supports and finances a fascist, as long as Graber doesn't do the same, people won't give a crap about what he does with BlueSky just like they don't give a crap about using other platforms like Instagram even though Zuckerberg is a moron.