But they can bar lots of people for other reasons. Block short people, people with black hair, people wearing red. It gets a bit murky when they block people

But they can bar lots of people for other reasons. Block short people, people with black hair, people wearing red. It gets a bit murky when they block people for something that is related to a protected class but not directly because of a protected class. For example blocking anyone wearing a cross because they block everyone wearing torture devices from entering.