Nope, they don't have to do anything.So are you suggesting that atheists should have to cheat and lie in order to be treated as equal to religious people?
These things are all OK in my book:
Come for the big game! 15% off your order if you wear a Chargers jersey
Rum night at Chili's! 15% off your order if you talk like a pirate
Church Lady day! 15% off your order if you pray at the table
Friday the 13th! 15% off your order if you know a Wiccan saying
In no cases does anyone have to do anything.
There would probably be a similar uproar.Again, what if it was the other way around? Can you imagine the uproar that would create?