An addendum: Regarding the defining of wrong. Legal rights and wrongs do not necessarily correlate to moral rights and wrongs.
I agree with this. Note, I'm not arguing in favor of actual prejudicial treatment. The Catholic Church is very clear: it's wrong to discriminate based on race. If I opened up a diner, I would be morally compelled to serve black people just as well as white people.
But that's not what's at stake. The question is about what the State should compel.
The way that I see it, the mere possibility (or even the actual fact) that a minority group ends up "harmed" by a segregationalist mindset on the part of the major party is not a sufficient reason to override our right to free association and to property.
Think about what this harm is: this "harm" is nothing else but the failure to obtain the benefits which otherwise would have been obtained by associating with the people who don't want to associate with you.
No such right exists.
If others don't want to associate with you, they shouldn't be legally compelled to associate with you. A right is a right.
TH mentioned separate but equal, but I'd like to note that what I am saying about private enterprise does not extend to cases in which there is a state or federal agency involved or an institution which receives federal funding. In that case, there is a public enterprise which "belongs" to the whole people. Therefore, there should be anti-discrimination legislation in those cases.
But certainly not in the case of completely private enterprises.
I have five children. When they were small we were quite poor. I usually baked cakes and brownies for treats because they could go a long way.
If I shared the treats in a less than equal way because one of my children had annoyed me would that be fair? moral? kind?
The question is one of legal compulsion. Should the State be able to force you to give your children equal servings of cake and/or brownies?
As citizens, we are in society together.
Yes, and I have argued for various economic policies on more or less these grounds. Since we are all part of society, then we have common rights and duties which are associated with being in society. But these rights and duties are not all-pervasive. There are real limits to the State and to the society.
I am a registered nurse. My license to practice comes from the state. I cannot legally refuse to help a patient who comes under my purview. That means that I must stop at the scene of any accident and render whatever aid a reasonably prudent other registered nurse would render under the circumstances.
This kind of legislation deals with matters of necessity/emergency. Those cases are different. As St. Thomas says in ST I-II, q. 96, a. 6, corpus: "...necessity knows no law."
Businesses require licensing in order to open their doors to the public. So they have a legal obligation to meet the requirements of that license.
It shouldn't be part of the requirements. It's one thing to say: "If you will engage in such and such social transaction, the transaction must meet these principles of justice/fairness." It's quite another thing to say: "You must engage in such and such a social transaction."