I can say with some honesty there has been some controversial threads on a few RC forums about how best to build an anti-drone RC aircraft.
Some want massive 1/4 scale flying fortresses with multiple lightweight shotguns on them, other are opting for electric aircraft that can air launch a salvo of model rockets and quite a few who are thinking of just building something extremely fast, has an on board camera and is basically a flying one way missile.
One of my ideas is one that has a hundred green lasers mounted to form a beam at least a foot across of multiple green lasers, at the least it would buzz the drone and blind it, also in the roof mounted version with a zoom camera tied to an acoustical tracker.
Private drones will be swatted out of the sky in minutes if the government wanted them gone. You don’t believe you can make an airborne missile launcher capable of taking aircraft down, and not expect uniformed people knocking at your door, do you?