drones are bad! that's the mantra and the panic that ensues. I say follow the money and see who stands to gain or lose from drone users (from hobbyists to professional and government uses). There you will find your real motivation for such panic.
I've struggled with how pilots flying at 100+ mph can honestly report sites of hand size drones and consider it legitimate information. I remember a fire fighting pilot being interviewed about how unsuccessful the fire fighting effort was because of drones-- let's see there's smoke, fire, debris, stationary obstacles and everything else and he actually had time to recognize hampered by drones. I think it's panic, fear and just opportunity to blame something new with lots of unknowns, than than realistic (before everyone gets all cocky eyed, I do hold a recreational pilot license which I've had since the 90s, PDK of all places)
That's not to say there is potential for a drone could cause harm. However, I'm sure the panic is driven more by money and control than common sense.