> The reality is that this is here to stay. The FGC-9 is not a joke, it's a powerful weapon that's impossible to effectively regulate.

Look, people in the 1940s were able to manufacture effective submachine guns while living in countries occupied by Nazi Germany. If it was doable with the tools available then and under the constant threat of armed soldiers legally ransacking your home or business without warning or warrant, it is doable today and in any conceivable future.

There is nothing particularly novel about the threat scenarios caused by ghost guns. The only thing that is novel is the reduced cost of obtaining an illegal gun.

Nobody's sitting around going "hmmm, I used to be a law abiding citizen, but now that I can 3D print an illegal gun instead of buying it, I will use it to go out and do crimes".