Let’s say you have a religious objection to gluttony and a grossly overweight person enters your restaurant. Can you refuse to serve him, modify his order, etc.?
Michelle Obama has done that in school cafeterias with her rabbit food diet forced on kids. Why isn’t that illegal?
First one is legal, second illegal. In the first example, you’ll potentially lose your clientele and business. In the second, the government threat of force is illegal as in unconstitutional. They have no right to dictate that to us.