Like I said before, I don't agree with that. However,
Some dirt bag that never takes a shower serving food? Nah, Sorry bro. I am sure if you owned a place of business you would hire the dirt bag in order to feel good right? Oh, You also can't force someone to put a sign on their place of business. This isn't nazi Germany or Stalinist Russia like the madman Obama and his group of windy city gangstars wish it was. Also, They will make up some other excuse to not hire them like certain racist business owners already do.

~BH
There are no laws on the books that you have to hire such a person.
You can't force someone to put a sign on their business? And you bring up Germany? Despite the fact it was Hitler's racism is what was his motivation behind the Holocaust?
Like I said, these places don't want to serve African Americans, their customers have a right to know. So that way, if they don't approve of such practices, they know enough to take their business elsewhere.
And at point, if they're trying to skirt the law, then you have the people who are licensing them to make sure they're following the law.