Universal background check = BATF form 4473 = de facto Universal Registration = end of privacy for honest firearm sellers/buyers
It is to no good or honest effect, of course. ALL gun sales by criminals are private sales. They will never submit to either the invasive paperwork or a background check. So they are committing a crime now? So what else is new?
But of course that is not the point. The point is government identifying every citizen who might have a gun - especially those who might conceivably have a beef about the government's ways.
It makes getting a search warrant for a "potentially illegal" weapon much easier ("we need to check your compliance with the law"). It also gives the authorities something to hang a hostile interrogation onto;... "Where is that gun you bought in June, 2013, now? If you don't have it in your possession, whom did you sell it to or give it to,... illegally? If it was stolen, why wasn't that reported within 24 hours as required by law?"
You get the idea. You are now a criminal. "Toss the house for more criminal evidence!"
An unintended (or perhaps intended) result would be a massive black market in guns by formerly law-abiding citizens. Now, of course, they are part of the criminal class.
This is a dream come true in the minds of the burgeoning fascists.
Very good points to keep in mind, Gritty.