>1. 3D printed guns are crap.
Hybrid like FGC-9 can be reliable for over a thousand rounds. Non-firearm parts added in US to a printed AR or glock receiver ['firearm'] can be good for several thousand.
>Huh? Being able to produce something illegally is in no way a substitute for having a right to possess that thing legally.
Aight so how do I carry a glock for defense in Hawaii? How about carrying a glock for defense in DC after catching a felony for illegally importing a lobster? Can I drill a 3rd hill in an AR without asking daddy for permission?
>3. Some people would like to be able to conventionally practice shooting their guns, without attracting "go to jail" attention.
Aight, so tell me how I could avoid being infringed while mag dumping a lightning-link.
2A is dead, we have a patchwork of [compared to rest of world] liberal gun laws that allow you to enjoy some firearms in some situations. But it's infringed to hell, particularly if you are a 'felon' [not in the sense of a felon when constitution was written -- just walking onto a prohibited water conservation area without disturbing it is a felony in my state].
The alternative is the politics of the deed, just make it.
Sure 2A would be better than mere ability to make them. But you have to live within reality. The needle isn't moving back to free of infringement.
>but a law abiding citizen certainly will
Well 2A says keeping/bearing a gun can't be illegal. Unfortunately state and federal laws say otherwise, and judges are happy to bend over and make any excuse to infringe, particularly against felons.