Fischer of course doesn't realize that this isn't about religious freedoms being taken away. It's actually about people masking their hate with religious wall paper. When you deny someone service on the grounds of race, religion, gender, or sexual orientation it is officially discrimination. A thing which is illegal. Not you being Christian. Nobody cares about that.
"It is now a criminal offense," Fischer said on his radio program yesterday, "it is now a punishable offense, you can be fined for being a Christian in the United States of America. For living, behaving as a Christian, it has now become a crime in the United States of America." Source
This argument is parallel to the arguments of the religious during the 50's and 60's. Same argument just changing blacks to gays. Niggers to faggots. It's history repeating itself and if it wasn't legal then it wont be now. That'll never change. You will never be able to claim "cuz God" when you hate on another group of people. It's wrong.
In short it isn't illegal to be Christian and it isn't illegal to be another religion or not have a religion. Fishcer is just a fear monger, as he has always been.