>At some point a service offered to the public must actually serve the public. We don't allow bakeries to choose which weddings they will cater. If you'll bake a wedding cake for $200, then you have to get baking, even if the happy couple with $200 are two dudes or whatever.

Excellent point. It is very well worth noting that pragmatically speaking, current law treats diversity > free speech, as is illustrated in your example.