Depends on what they deny it for and why. If they deny service to a Nazi on the grounds that they won't serve Nazis then the Nazi in question doesn't have a legal leg to stand on, seeing as political beliefs are not a protected class. If they deny service to homosexuals then as recent government decisions have shown that's another kettle of fish entirely.
If you honestly think that a Christian baker could get away with that crap then you are naive at best.
We all now damn well that this judge wold be hypocritical if the roles were reversed so lets cut the crap