I think we need to pick our battles, and this is one we shouldn't fight. This measure seems reasonable, even to a majority of gun owners/NRA members, so we are told. Our friends of the opposing views opinion that WE are unreasonable is reinforced when we resist a measure such as Back ground checks. Now, if it turns out that they were disingenuous, and heaped a bunch of other stuff into the legislation calling for universal BG checks, then call them out on their motives, and fight it with everything we have. They think that we all think that every Psychopath should have a belt fed machine gun and 1 Million rounds of ammo, and of course, some do. Flapjack.
As pointed out by cmort, this will result in outlawing private sales and universal registration. This is worse than the proposed gun ban and should be fought with no quarter given.
You don't speak for "the majority of gun owners".