For starlink to work, you need ground station that look like
this , and/or antenna like devices that looks like this. And some governments can simply ban their import, just like they banned importing/using drones in their countries.
And let's be real, Satellite internet is complete s**t, and is very expensive, so it doesn't pose any threat whatsoever to telecom companies, because not a lot of people use satellite internet, and those who do, use it while cruising around the world, living in an island....etc.
However, Starlink is completely different beast, and it poses a real threat to telecom companies around the world, so you can see why some governments won't allow starlink to operate in their country because of made up reasons like how starlink is a "threat to the national security" or some other BS.
So yeah, it's gonna be interesting to see how Starlink and elon musk will deal with these issues