I haven't read these yet, but I will soon. This is in response to the United States using drones to enact ethnic cleansing. This was a breakneck search, but if anyone has a good in-depth article for countering drone warfare, please let me know.
NATO.int | Countering Drones: Looking for the Silver Bullet
NDUPress.ndu.edu | Breaking the Shield: Countering Drone Defenses
Claws.in | Drone and Counter-Drone Warfare at a Tactical Level
A good idea would be for drone hobbyists to outfit theirs with weapons. It's incredibly important, too, to target factories, and develop chemicals, EMPs, and other technologies that can disrupt drone functioning (drones are quite fragile). Hopefully China, or otherwise industralized states, developing drones en masse can send some to resistance groups.