Any pilot will tell you that birds are responsible for avoiding bird strikes 99.999% of the time.
If drones move out of the way of airplanes autonomously, then great. They don't though. Hobby drones aren't really the issue here anyway, the real issue is the larger drones.
Also, some guy goes out and buys a drone, takes it up for a flight. Does he even know that he's within 4 miles of an airport? A lot of people have no idea where the GA airports are. Some really fundamental training on air space rules would go a long way towards safety I think. A few hours of ground school at the most, and passing a very simple exam. Could even be an online thing.