What veterans fought (fight) for is freedom. Freedom includes being able to deny access to private property for any reason not specifically part of a "protected class".
Freedom also includes the right to disagree with those choices and to refuse to patronize the establishments which make those choices.
I love freedom.
Still happily answering to the call-sign Peetza.
The problem, as you so eloquently put it, is choice.
He is no fool who gives what he can not keep to gain what he can not lose.
-Jim Eliott, paraphrasing Philip Henry.