No, but the government could nationalize it and spin it out again.
After nationalizing, Musk will have a huge pile of cash. He can then self-fund a new SpaceX/Starlink.
Yes, many current SpaceX/Starlink employees will stay put, but I'll bet that a critical mass will say "We get a fresh start on everything? I'm in."
Oh hell no it doesn't.
Yeas, why not?
> Suppose starlink takes their C&C keys and builds a control center in some other country
That won't happen. It is obviously better to be fully legal billionaire (even if the government take away 99% of his assets) in the USA than to be in some other country (which can in any time change it's mind), wanted for treason by the USA. Not even close.