Notice how the US government has never commented on any of his "stupid things" (with most of the Ukraine related ones turning out to be either lies or misleading reporting). Hell, US policy on that front has until extremely recently with the supply of ATACMS been fully in line with the restrictions placed on Starlink by SpaceX.

The government is not going to nationalize SpaceX for such basic reasons. Defense contractors and other large companies regularly go against the government with much larger sums of money involved without any of this delusional thinking getting involved.