The Starlink terminal can't know based on only its position which side it's being used by. Equipment is often used in enemy territory.

I know this is a meme but for those at home the whole point of a war is to cross over the front line into the opponent's territory and capture it. If your comms are disabled when you cross the front you can't really fight. So "just disable Starlink within Russian territory" does not solve anything.

It knows this because it knows where it isn't. By subtracting where it is from where it isn't, or where it isn't from where it is (whichever is greater), it obtains a difference, or deviation.

This makes it a very, very dirty terminal.

Yes but the problem is that the battle lines are fluid and the drones are obviously aiming for the Ukrainian side.

It knows this because it knows where it isn't. By subtracting where it is from where it isn't

I think what's actually funnier is that the satellite shooting the laser has to know where the terminal is with pin point accuracy too. So it's pretty easy to cut off targeting to a vast chunk of the planet.