"I fly RC models - which cannot maintain stable flight beyond LOS - and unfortunately I and my fellow RC pilots have been caught up in the drone legislation through no fault of our own."
I would HOPE that you did finally come under such laws and regulations considering the much more dangerous activity you are involved in.
Your so called "RC" (read unmanned) aircraft are inherently more dangerous than the typical drone today (above the lowest toy grade) as they, by your own admission, can not maintain stable safe flight beyond line of sight or even loss of signal.
Typically a drone would have GPS onboard as well as other sophisticated devices that enable it to be aware of its position relative to launch point / waypoint, altitude and 3D accelerometers letting it know where it is headed, how far and how fast. Upon loss of signal it will attempt to navigate back to its take off point and land. It will also do this if commanded by the owner and if its batteries are getting too low. Loss of sight is an issue for the operator that can be mitigated by the inclusion of FPV on the drone that can allow the operator to reacquire sight or attempt to land it safely should a return home command be iffy due to a low battery. Also if there is loss of sight the drone can simply hover, not bothering anyone, not simply falling out of the sky or plowing into a family picnic like with your "models".
Your so called "RC models", which is an archaic term for an unmanned aircraft these days, do none of this. They wont return home when commanded, when running low on power or when they lose comms to the controller but will happily fly about in an uncontrolled manner (as you pointed out) till they hit something or someone.
Your "models" are highly dangerous should you lose control. What happens if you have a heart attack? What happens if you get distracted by someone who is in danger or get distracted by your kids who really need an adult. Are you going to always be able to say "hang on, try to stop bleeding while I land the thing, not long now"
If any of those things were to happen to me I can quite simply press the RTH button. The drone, not needing my assistance, while I deal with the emergency will climb to a decent height and slowly make its way back to the launch point where it will then slowly descend till it touches the ground and shuts off its motors.
I'd much rather be near a drone than a flying missile any day. Yep, things can happen to cause the drone to fall out of the sky like a rock but at least its designed to not do that by default.