In a way I agree. Existing law should preclude the misuse of drones.
In most states it is illegal to record any person without their consent in any place where they could expect privacy.
However until the availability of drones in most cases VOYUER would have to subject themselves to potential exposure to get their illicit film.
Now with drones the voyuer can from a secure safe distance look in a window or over a fence and spy on most anyone who leaves a window open.
and if you live in a city yo can not even shoot the things down if you find it outside your window.
Sure they should be legal but we need away to trace them back to their owner,
I disagree because your idea sets a dangerous precedent to justify gun registration.