JB actually made a good point on another thread.
Owning a gun doesn't give you the right to use it to violate someone's civil rights.
Neither does owning a business.
But do you have a right to do business with whom you please?
Do you have a right to not do business with whom you don't please?
Again, I propose that the act was necessitated and justified by the need to break the system, but only due to the circumstances. It should not be used as a precedent for Law outside of equal circumstances. I see no justification for laws today, as I see no equally abhorrent and oppressive system [in the USA] that need be broken.
At the time, it was far the lesser of two evils. Today, it seems the greater of the two evils presented to us, the other being allowing what isolated discrimination is likely to be implemented that is not already so, should this law become null.