Someone should dig into who this is coming from and why. The answers are usually either (a) they got paid to do it by a company selling the tech, which appears not to be the case here, or (b) they went insane on social media.
(can't confirm this personally, but it seems from other comments that it's perfectly feasible to just drive out of New York State and buy a gun somewhere else in the gun-owning US? And this is quite likely where all the guns used in existing NY crime come from?)
I would also note that the Shinzo Abe doohickey wasn't 3D-printed.
Also atleast in America there is a very large 3d printed gun community lots of people are doing it I suggest checking out the PSR YouTube channel it’s a guy who is basically a real life dead pool who’s 3d printed every gun you can think of his videos are very entertaining and while you won’t learn much since YouTube restricts any teaching of gun manufacturing you may be surprised at how far 3d printed guns have come. His plastikov v4 video is good and pretty funny if I remember.