The distinction I’m making is between characterization of discrimination towards other people versus upholding of belief to oneself. Denial of service on the basis of race, religion, color, social attire, etc. is discrimination and can be acted against. Refusal of service based on personal belief such as proximity to alcohol or beef should not be acted against in a diverse society. Catholic chemists not stocking birth control pills, or Muslim meat shop owners not selling pork (although they may have customers wanting to consume it) is a matter of freedom of religion. How would you react in a situation, say, where you happened to be traveling in a cab whose Muslim driver had to pull over for a 2 minute prayer (the timing of which cannot be compromised according to his faith)? Would you insist that Muslims should not drive cabs at certain times of day? We all need to be accommodating towards religious practices to a certain extent – a diverse society cannot function otherwise. There are fuzzy levels of tolerances, and we should react appropriately to foreign religious practices whose basis we may not always fathom.