And as the other user mentioned, no country at the moment has the kind of stockpile of ASAT weapons needed to wipe the constellation (plus, due to orbital dynamics, there's a limit to how quickly they can take out satellites).

Between trying to wipe the constellation and jamming it, it'd be far more cost effective to jam even accounting for the higher power requirements/lower jamming range.

There would also be other interesting options like capturing and using enough terminals to force the entire cell to be disabled. That has been one of the challenges SpaceX has had to deal with near the frontlines in Ukraine.