Destroying a satelite is much easier than launching one, even with existing systems. Worse, given rate of improvements, I think we're going to get ground-to-orbit anti-satelite lasers before 10% of this constellation gets launched.

And at least one of the nations with the existing military capacity to make a "no" stick is currently considering criminal charges against Musk personally, while another has a long history of assassination including of their own oligarchs.