She was the one who suddenly decided to tell someone that she didn't want to serve them because of what they are.
That's not the story I read. It was not what they are that caused her refusal of service but, rather, the event they wanted her to service. She was already selling flowers to the gay customer. It was the wedding ceremony she objected to servicing.
A false equivalence as well as an unlikely scenario. The people getting married may be KKK members but it is not the KKK organization getting married. If it was some KKK event I think people would have the right to refuse it.
I haven't asserted an equivalence. I asked a question, and your response dodges that question.
A florist may sell to individuals she knows to be members of the KKK. But if those same members want her to service their wedding as a KKK event then what? Should the florist be forced under the law to service the event no matter how much it hurts her moral (read: religious) conscience?
If anything we need laws to protect society FROM religion, not protect religion from individuals in society!
I agree with that sentiment, but for now religion and religious taboos are a part of human society. This takes time, and I'm not convinced that burning the florist's business at the stake is necessary.