We reserve the right to refuse service...unless, of course, the refused is gay or muzzie, in which case, there would be basis for lawsuit. Otherwise....freedom of the payment processor.
What does it matter? FFL dealers have been part of the destruction of the 2A for too many years at this point. The 2A does NOT say, shall not be infringed, as long as you have a background check. Forgive me if I don't feel sorry for the FedGov butt kissers.