>>12339I'm not opposed to a requirement of transponders for commercial drones. If those delivery drones ever become viable, there will probably arise a need for dedicated drone airspace corridors and possibly even some kind of flight-control system that directs what flight routes drones can take to prevent collisions.
However none of that is really relevant here. This law has a requirement for hobby drone pilots to not only have a drone-transponder, but in addition they also have to broad-cast the location of their person. This is a mandate for a personal tracking device.
Outside of a commercial setting, neither your personal stuff nor your person should be subjected to any kind of surveillance. And any attempt of subverting personal privacy should be frustrated with effective means.