Passionate ignorance appears to inform (if that's the right word) the anti-gun side of debate. Much of what the antis trot out as "facts" simply isn't so, and the mis- and disinformation runs right up to the politicians gravely informing us of their desire to regulate a basic human right.
How do you counter it? What can you say to people whose toleration of cognitive dissonance is so huge that even as they say "military-style weapons have no place on our streets," they're sending in police armed with M-16s (likely real ones, as in full-auto) and calling for National Guardsmen to be deployed, one per facility, to protect schools, armed with, yes, M-16 military weapons. That have no place on our streets. Ahem. (Only police and soldiers should have such weapons? Really?)
Then there's the "guns are easier to buy than [...common item...]" meme. Utter nonsense, of course, and doubly so in states that restrict or prohibit private firearms sales. Even at gun shows,even here in gun-friendly Indiana, most selling is by Federal Firearms License holders and you fill out the same Federal 4473 and get the same NICS background check as you do at the gun store. (The background check system is unavailable to anyone but FFLs; funny, that.)
...The list goes on and on, most of it half-true at best. Answer it with facts whenever you can.
The pols are going to Do Something and we're going to need to use the soapbox and the ballot box. What they will do, how far they might go -- I'm not sure and it worries me. While I'd kind of like to see 'em try to go too far and get smacked right down for it, in Congress and the courts, I do worry that really excessive overreach could result in an escalating mess. React -- but don't over-react. And keep an eye out for tripwires.