Realistically they sell more guns than any other group. Every time they call for random bans everyone goes and empties every gun store within a 100 mile drive. Obviously there's a lot more to it than that but both sides political rhetoric has been making the US small arms industry absolutely explode. We're absolutely past the point where you could actually ban scary guns and have any effect. Half the country has more ARs than they know what to do with, literal piles in safes and dresser drawers, and they've gotten extremely comfortable with the concept of civil disobedience/non-compliance. Further, fuck 3d printing, every dude with access to a CNC is pumping out cheap lowers and suppressors so they can justify having an SOT (the ability to obtain or produce legal machine guns).
If this is scary, the best and only course of action is reducing the temperature. Treat young men like they aren't economic cannon fodder so they don't feel like the only locus of control is fucking weaponry (fix housing, job security), positive intervention for crisis (don't just send a hit squad of cops), and don't be afraid to engage with rural populations (they're intelligent humans too).
They mean the Bluetooth MAC address. It'll capture your phone's and can tell who the manufacturer is but the rest of the address is randomized. That said, lots of watches/earbuds/assorted smart Bluetooth things aren't randomized because manufacturers are lazy.