If (1) SpaceX is the only organization actually able to launch at scale (vs. promising eventual launching at scale while burning through $billions), (2) the Big Money in space will be made with large constellations of internet/cellular communications satellites and orbital DC's, and (3) SpaceX is winding down the launch services that it provides to outside customers - then all of SpaceX's competition for the $$$ will be stuck on the ground, giving them a monopoly.

Eventually, anti-trust law and/or another competent launch provider might break that monopoly. But Elon's buddy Don will control the Justice Dept. for a couple more years. And even for the competent, ramping up launch is slow.