It seems to me the real problem is separating drone traffic--including drones bought by amateurs and self-built drones--from passenger carrying aircraft. Meaning rather than sending commands causing drone traffic "swarms" to self-separate or to prevent them from flying outside of their desired area--which strikes me as problematic if you want ot use a drone to inspect a pipeline or inspect telephone wires (for example)--wouldn't it be better to simply create advisories to help separate drones from passenger airplanes?
For example, wouldn't it be better to simply advise drone operators to keep their aircraft 400' AGL (or lower) and keep them out of the approach corridors of various airports (and publish those locations and encourage drone manufacturers to provide maps), and pass laws which make it a potentially criminal offense to operate a drone above 400' or in a landing corridor unless your drone has a transponder, you're in constant contact with ATC (and are being actively separated by ATC) and the drone has the ability to land itself when communications with its operator is lost?
Yes, it'd be a bitch if two drones collide. But there you're just talking about property damage. What frightens me is some idiot with a DJI Phantom and a GoPro trying to get a close-up of a 737 carrying passengers as it attempts to land at LAX--and getting his toy sucked into the engine, taking that engine out and risking everyone on board and everyone on the ground.