A terrorist group may not be protected...but an individual citizen who may sympathize with a terrorist group could be. He doesn't have to be a member of the KKK. Just a guy who likes the KKK and takes delight in screwing with this black business owners because he resents the fact that he is a business owner and not a janitor or a share cropper. I am making it complicated because I see the law as protecting ONE group of people and saying "screw you" to all other minority groups. In this example the Baker in the case has stopped making wedding cakes. It would be a shame if a Jewish or Black or Latino or Asian baker had to make the same type of decision when they harbor no ill will towards anyone other than those who harbor ill will towards them.
The Little Guy