Funny you mention reality. I don't even consider Musk Republican, but let's assume that for the sake of argument. Latest generic congressional polling has Republicans leading by handful of points.
As Terry Pratchett so wonderfully put it in Making Money (Discworld #36)[0], there is "a piece of ancient magic called [..] fifty-one percent of the shares".
As far as what happens at SpaceX goes, Musk isn't the minority. He's the (?? 78%) majority owner.
So, if you work at SpaceX and don't like him, I think the options boil down to: a) suck it up, or b) find somewhere else to work ...
... or maybe c) leave and start your own SpaceX? We all know competition is good. Of course in that case you'll really have Skin In The Game[1] - and coincidentally that's the Taleb book I've been reading this afternoon.