I got into a discussion about FADA & denying service in PUBLIC businesses based on one's beliefs.
Here were his answers to FADA.
de Toqueville
"Here is my approach, one thoroughly thought over during the Scottish Enlightenment, and the the one adopted by the framers of the Constitution: (1) I am the owner of my body; therefore (2) I can do with my body as I wish, but (3) with the primary limitation that my right ends where your right begins. If you believe that I have a legal duty to serve someone I don't want to serve, you've violated this principle because you've placed their rights over mine. I have a right to refrain from using my body in a manner I object to, because it's mine. By contrast, the protected class you want to force me to serve has no corresponding right to demand labor from my body. Otherwise, you've endorsed the peaceful slavery that I quoted from Tocqueville above.""
Lord Moulton on Manners
We must distinguish between should and shouldn't versus legal and illegal. There are plenty of things we "shouldn't" do that don't violate someone's rights and thus should not be illegal. One of the best discussions on this topic appeared in the Atlantic Monthly in 1924 and is titled "Law and Manners." It's a great read and not very long. http://www2.econ.iastate.edu/.../Newspa.../LawAndManners.pdf
I pointed out that de Toqueville also spoke of the " Tyranny of the majority." He cuts both ways.
Then about Lord Moulton and manners whereby those mores would shape better behavior 
I told him if my Mama and her sisters were patrolling the streets along with others of like mind, there would be much better behavior. However, it has been proven that trying to rely on manners to dictate behavior leads to "Lord of the Dung Bettles" and worse.
Lawd help me.