Yes, they are that dangerous, and that is why FAA regulations already make it illegal to fly a model airplane around an airport. When Moffett field was an active Navy Base you couldn't fly your kite at Shoreline without getting hassled by the MPs.

Those regulations have been around for a long time and have been effective at keeping planes safe. When people violate them, they do selective enforcement to remind folks the regulations are there. A good example of regulation that succeeds in its goal.

Adding the forced identification thing is the red herring here.