Growing up I remember seeing signs in various business stating “we reserve the right to refuse service to anyone”.
I get discriminated against all the time: when I try to shop without shoes or shirt, when I try to shop at 10 PM after they closed at 9 PM, when I am visibly intoxicated and the bar refuses to serve me another, yadda yadda.
Take your business where both buyer and seller agree to the transaction, it’s not that difficult of a concept. Yay Indiana, fight the good fight regarding the truth.