there is no world where using Starlink won't be easily detectable. You're beaming radio waves up into space, all you need is a helicopter with a $100 antenna.
Just make it a crime to use the internet when the government tells you not to. The actual content doesn't matter. Or don't make it a crime, and just arrest people on spurious 'national security' charges, with vague allegations that they were spying.
Encryption is great but some of its proponents seem not to grasp more concrete realities.
The satellite dish is a spot light. It doesn’t matter if the signal is encrypted (it is), the radio signal can be detected. Maybe not from the side but definitely from above. The dish is big enough that can see it optically.