Displaying or defacing a message on a license plate is free speech.
Serving at public at large isn’t. You aren’t allowed to discriminate on proscribed grounds.
Unfortunately, Christian businesses don’t get a religious objection ground to discriminate.
You raised two different topics there -
“Displaying or defacing a message on a license plate is free speech.”
Depend on which side of the bed any given judge has gotten out of that particular morn. Since it’s government issued, I wouldn’t alter one.
“Serving at public at large isn’t. You aren’t allowed to discriminate on proscribed grounds.
Unfortunately, Christian businesses don’t get a religious objection ground to discriminate.”
—
Again, depends on the judge. Otherwise, the courts would be clogged with caravans of proprietors defending their “No shirt - No shoes - No service” policies.
Using your logic a professional Democrat speechwriter could be compelled to write a speech for Trump.
A professional costumer could be compelled to design fetish gear.
A Jewish bakery could be compelled to make Hitler birthday cakes.
A makeup artist could be compelled to do feminine makeup on a man.
Etc.
Preposterous. Our first amendment means nothing in your view. Take these thing to their logical conclusion.