Forget the domestic market, we can take care of ourselves; I'm worried about us being cut off from the plethora of great and innovative designs available internationally (and morally appalled by the loss of the ratifiers' civic rights, but that doesn't make it my business). It's already bad enough here with 922r, assorted import bans/restrictions, and parts kits having both receivers discarded (it's no longer good enough to torch cut them anymore) and barrels, now torched. No more importable barrels of any kind, last I checked; that means no more German Elves barrels or Swiss match rifles, unless they are old, antiquated designs like single shots.
Our senators, who are probably at best the harmless type of Fudd (passive type), likely don't have the slightest inkling of any of these issues. I'll bet a good number of them have no idea that arms imports are regulated, already. They definitely aren't familiar with all the BS and paperwork that importers of guns and parts kits currently have to go through, and how an international arms trading freeze would shutter them. They don't have time for such small fish. I say there can be no harm in letting our senators (and president) know how important and crucial our peaceable international arms market is. If the UN wants to crack down on illicit arms dealers and 3rd world despots, they need to tailor their treaty far more narrowly (not to mention take a good hard look in the mirror)
Yes, a chunk of the lost import market would be filled by domestic growth and by foreign companies moving some investment here, but many/most of those firms are much more beholden to their/other governments' needs than ours, and would most likely write us US civilians off as too big a bother (case in point; H&K). I simply see no potential for good to come of this treaty's in any way, and that combined with its far-reaching ambition does worry me greatly. We should oppose it the same way we fiercely oppose equally-unenforceable domestic gun laws. They set a bad and dangerous precedent.
Or do we not care about the Colorado mag ban now, since it's both unenforced and unenforceable?
No, these international meddlers could never impact our lives directly. After all, the US is so insulated from foreign influence that our international policy is now dominated by global warming, and headed by a 'citizen of the world' who must suck up to China/Russia on a near daily basis anymore...
Oh yeah, we also have enormous foreign debt loads, and most of our most crucial industrial entities are international conglomerates with more foreign interests than domestic.
TCB