From wiki:

The satellites are equipped with krypton or argon-fueled Hall thrusters which allow them to de-orbit at the end of their life.

SpaceX currently has more than 3,900 functioning Starlink satellites in space

Suppose a superpower puts a sort of combat ship into low earth orbit. Do you figure a 250kg Starlink could kamikaze a hole through its hull?

I think it is space force and moon lasers and alien attacks. Mutually Assured Destruction 2: 2Dead 2Mutual