What other options are there to fight enemy propaganda?
https://scottberkun.com/2013/banning-things-makes-them-power...
It boils down to “if we can’t think of any good solutions to a difficult problem, then we should try bad solutions even if they’re counterproductive”.
When the communication becomes "enemy propaganda", you are forced to raise a wall which looks suspiciously like what your "enemy" does and wants from you as well. Mutual coexistence is impossible without two-way communication, and that means they will also going to influence you, whether you want it or not, even if you raise a wall. Communication here not necessarily being words but actions.
Turns out it was your business as well, after all. Think about it today because it might be too late tomorrow.