True, but such things get out of control.
As an employer with the responsibility of hiring, decisions are influenced by fear of consequences. It is easier to hire a lesser employee, and not fear reprisal, than to not hire them, and face potential and often likely, punishment.
An obvious case of the problems, is the firefighters in the states, New Hampshire I think it was? Not enough people of the correct skin color passed the test for promotion, so it was thrown out, costing many people benefits.
The idea of Religion having any role in the workplace is obscene. Like the English bus driver stopping to pray 18 times per day in traffic, or the hairdresser that wouldn't take off her hat and received something like 20,000 quid over it.