[morei]

It's easy: Just make it illegal, and put make it incumbent on starlink to enforce it. Violations are met with (eg) sanctions on Tesla and other related parties.

This has played out many, many times in history and it's generally successful.

Yes, it's often not perfect. There are small numbers that slip through the cracks. But as soon as it's any significant number the crack will get closed. c.f. great firewall of china, north korea anything, various European data location requirements, russian internet payments and search, etc etc etc etc.