Would you support an AO that would require businesses who engage in discriminatory behavior to openly identify themselves with a sign or some other means? It is absolutely ridiculous to me that any American would have to ask before hand whether or not they serve my kind. The Supreme Court has ruled on this in a number of different cases, the Equal Protection Clause of the Fourteenth Amendment prohibits by law the discriminatory behavior you describe. If someone is unable to reconcile their religious beliefs with the secular flow of commerce in our economy they should reorganize their business as a non-profit charity or church, then they would be free to refuse service to anyone they didn't like.