I mean my state has been making it illegal to download 3d models of pieces that could be used to make guns in a 3d printer

It’s a very broad law and likely not legal, but it’s going to take a long time to be fought through the courts, and in the meanwhile people will probably be arrested for creating or sharing a file for something that may be able to become a gun part.

You’re correct that it shouldn’t be a thing but unfortunately American society is not in a good place right now