I think in the US they call it right to refuse service. It's not a law per-se but rather a right businesses have unless prohibited by other reasons. One such re

I think in the US they call it right to refuse service. It's not a law per-se but rather a right businesses have unless prohibited by other reasons. One such reason being discrimination of protected classes, like races, sexuality, gender. But they need to be one of the specific classes protected by law, you can discriminate against small businesses for example, that's just business.