> identified as a national security threat by the US DOD, essentially because there's no way to be sure that every second of GPS-tagged video shot by a DJI drone isn't going into a giant server farm owned by the Chinese intelligence service.

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.