The types we have are the ones shouting "The NFA isn't Constitutional so I'm not gonna obey it and do what I want in regards to SBR's and silencers. ALL gun laws are unconstitutional".
You try to explain to them that yes it is the law and if they want it changed it needs to be challenged in the Supreme Court and deemed unconstitutional or that said person needs to work to get people elected that will via legislation repeal the NFA and all modifications/adjustments made to the original document in 1968.
Trying to talk rational like that is met with allegations of "boot licker" and "fudd" whatever that means. Some of them have gone so far as to bash anyone who supports cops. Yeah it's that bad in there now.
They could have all the LEO's you could gather up talk to them and they'd use the out of context quote from Justice Marshall in marbury v Madison to justify their "blow it all up" mentality.
Changing it back isn't going to be easy, and if it can be peacefully done, that will require a lot of effort, from teaching the masses about firearms, to the Constitution, and the intent of the Founders.
I think some people (general population) are more afraid of what they might do, how they might act, given the opportunity, or of their neighbors as well. Civility, a lost art, might be revived in short order were that the case.
But those you speak of, alienating themselves from people on their side (if they'd look), and acting like the very thing the Media have painted as the caricature of firearms owners, something that makes those hoplophobic urbanites incontinent, is not a good way to win hearts and minds to the cause of restoring the Second Amendment in all its glory.
Seeking, much less following the counsel of those more wise isn't their strong suit. When you are actively alienating those who agree, in principle, with you, it's likely you are doing it wrong.
That's just as sad as the idea that there was a time in this country where having a machine gun wasn't such a big deal, where 20mm antitank rifles could be ordered through the mail (with ammo).
While, in spirit I agree that the NFA of '34 and the add-ons in '68 and '86 are as unconstitutional as summary executions, the people have been dumbed down in re: their Rights, urbanized, and convinced by decades of mass media propaganda that these are devices which only have utility in war, and therefore should only be placed in the hands of citizens for that specific and express purpose, under chain of command and in uniform.
(Never mind that it is fun to shoot full auto, if you can, just for the heck of it, or that a rifle which is a guaranteed takedown of a feral hog from a safe distance, which makes bait of said same hog would be nice, or that opening up on a group of them with the ability to lay down some more serious firepower than a bolt rifle or even a semi-auto might take care of the feral hog problem quicker than you'd think.
(Somehow LEOs got written into the 'okay to have more capable firearms' group, I believe to quash any opposition from that subset of gun owners.)
As I have said before on other threads, many Americans don't have a clue what it is to be free, and this is just one more subject on which they have been convinced they don't really want to be free. They fear it.
Instead, what they call freedom is just freedom from responsibility and freedom from making decisions; not real freedom, where both decision making and the responsibility for those decisions and their outcomes are embraced.
Maybe if they aren't
agents provocateurs, you can convince them they are doing more harm than good.