A few thoughts come to mind, let me ask you, do honestly think the guy in Seattle just randomly did that? Or was he an activist in the Minnery bent to say, "see"? One guy mind you, where is the title wave of males invading woman locker rooms?  
  As far as this exception for private business, I say this is a slippery slope, Natives not allowed? Muslims not welcome? The SCOTUS has already made rulings in issues of business exceptions and they  basically said if you have a problem discharging your duties, don't do that job, you made a decision to be a Pharmacist, or baker. 
There is no religious conviction to discriminate against anyone, for any reason, I know I know people will say well what about this verse or that one. Okay well what about all of the ones you are ignoring? Last time a guy showed me a verse that included adultery? So can a baker refuse to bake a cake for President Trump? He is an adulterer?