Consumer drones already deal with a hostile RF environment well. Finding the frequency with the least interference, using a wide bandwidth for control, and a different one for video, and programmable signal-loss behaviour.

Cities are hugely hostile to low power transmission, especially in the 2.4 and 5ghz frequencies.

The effective range of cheap DJI "mini" drones in cities is measured in kilometres. If you get away from the city, you can double and triple your effective range.