Yep. There are far-right groups whose favourite pastime (after being racist) is figuring out how to kill undesirables and get away with it.
I actually wouldn't be even slightly surprised if the whole "minorities need to buy guns and carry them everywhere as a magical safety talisman" began as a way of bringing the police-issued excuse "he had a gun so I got scared and shot him" to the public.
Of course, I also wouldn't be surprised if it came from a room full of sleazy gun industry executives who worked out that propaganda and hero fantasies work on left-wing people too.