There is no comparing drones to RC Aircraft. I have never seend a problem with RC's. Generally, they fly them in clear, open spaces, and do not invade peoples private property. They don't usually have cameras capable of spying into open windows, or poolside sunbathing.
It appears that we will find ourselves having to modify OUR lifestyle to accommodate drones. One more thing taken away from us.
Now, if you don't think they are invasive to wildlife in Nat. and St. parks. Think again. I would hazard a guess that drone owners flying in parks, seeing wildlife would fly in closer rather than leaving the area. Wildlife harassing is detrimental to their survival. AND there will be a lot of harassment of both wild and domestic life. Not good,