I wonder if Elon wants to tangle all his businesses into SpaceX so they are all kept afloat by SpaceX's importance.
Second, history will look back and realize that without taking into account the volume of your voice, you don't really have free speech in a way that matters. If you the person next to you can use a megaphone that is so loud that no one hears you, you effectively have no speech. A great many democracies implicitly realize this and thus have election spending limits tied to the number of supporters. The US, through it's lobby system, and through party affiliated control of third party networks, does not.