"who has EXACTLEY the same right as you to use airspace?"
Yes, but not the same airspace at the same time, because that's just stupid and dangerous. And like many other situations - the "vehicle" that has less maneuverability usually has right of way - and there are also separation rules because of that.
The selfish idiots are those who believe the whole world is just there for their own entertainment only (usually just because they have money to spare), and other people have to comply with that, because they have no rights - while flying has always been a very cooperative environment exactly because of the risks involved.
The issue with drones is a computer flies them, so any dumbass can use one, safely on the ground, putting people in the air at risk. As I already wrote, there should be explosive in the controller that blows up if the drone crashes. Just to level the field...
Anyway, when you will be hit by a car, remember it has the same right as you to use the ground space...