Others can play that game too. Perhaps customers should refuse to allow Muslims to check out their orders on religious grounds;
“I refuse to allow anyone who believes in genital mutilation to touch my order.”
“We are still all very angry about that attempt to conquer Vienna, you will not be ringing up my order!”
“We see what you people did to Hagia Sophia! You will not be checking me out today!”
“Have you been washing your feet with those hands! Don’t even think about touching my digestive biscuits!”
Repeat often...
I refuse to allow anyone who doesn’t use toilette paper to touch my food.