There are far more obvious reasons for that. These drones are of enormous military value. By buying them, US consumers are funding an obvious foreign military hardware production. US money may well be funding production of drones which may once be used to correct artillery strikes on Los Angeles.

DJI are particular seem to work in concert with "military civilian fusion," and have hardware, and software to defeat both very serious jamming, and attempts to fry its radio with pulsed microwaves. Military jammers for 2.4g band seemingly have near 0 effect.