I mean, the sales pitch works to get them to buy the guns. After that point whatever they do with them is no longer the salesperson's concern... :-P
The same goes with prepper gear - like, what amount of food & water is going to help you survive a nuclear winter? Especially in comparison to paying taxes to a government that will formulate economic strategies that lead towards nations never using such weapons in the first place, b/c their wealthiest business-people stand too much to lose.
I can barely imagine the mindset of a prepper who readies themselves for all manner of attacks against them... but then refuses to take a vaccine? Or wear a mask, or simply stand 6 feet apart and/or reduce going out especially during peak times, and also works to prevent others from having access to those vaccines or wearing masks of their own volition.
Some people are more vulnerable to different types of "attacks", disinformation being one of the most effective that has ever existed.:-(