This may have been said as a joke, but it's true, and also about as far as any Republican voter cares. They are not at all against political violence, as that is the explicit purpose of modern Second Amendment culture. Personal grievance murders like school and workplace shootings are just collateral that the ghouls write off.

I don't think it's a coincidence that the NRA became a highly political organization not long after desegregation and civil rights became settled, and you had to start treating black people like people in polite company.