[metafunctor]

I'm imagining a super narrow directional beam pointed at the satellites. You cannot jam that, and even detecting it would mean you need to be really close.

It can still be made illegal, of course.

[ansible]

A bad actor could also use a super narrow beam pointed at the satellite as a jamming signal that saturates the receiver, which prevents reception or even damages the satellite. Depends on the power.

[lvs]

Nah, it wouldn't be that hard to jam the inbound signal, especially within cities. The sat can't really focus a beam in the way you're imagining.

[Matumio]

I don't know what technology you need to track and hit low-orbit satellites with a narrow beam, but I bet it's not as cheap as a dish?