It depends on whether you believe, as I do, that a business owner has the right to choose his/her/its customers, or whether you believe that customers have the right to choose to patronize any business they want to.

I can shoo anyone I want to from my lawn, why should I not be allowed to shoo anyone I want to from my business?

And then there's the ultimate silliness, why would I want to do business with a bigot?