Dude, what else is it? They are legally allowed to reject people from working for them based soley on if they are a single-mother or gay. That's the textbook diffinition of discrimination.
Until gays are being beaten on a daily basis, killed on many occassions, and barred from eating at a pub... THEN we can use the term.
Yeah....no, you're wrong here. That's just extreme forms of discrimination.
Unless you think that a business that refuses to hire gays and single-mothers specifically because they're gay or single mothers, is not actually discrimination. If so, what the fuck would you call it? A strong way of saying "We don't like you?"[/quote]
Discrimination actually does imply a legal aspect, i.e. if the US federal government says that as a Jew I'm not allowed to have a job, THAT's discrimination. If the Catholic Church says I can't be a priest because I'm Jewish, that's just a matter of their rules. I can always just stay a Jew. When it exists completely private of legal protection, condemnation, support, or recognition, there can be no such thing as discrimination (but I'm about to counter that exact point, so read on).
That said, many religious organizations receive political support; many claim that the Boy Scouts have become a mouthpiece for radical Mormons, but they receive government support in the form of discounts and use of public spaces. The question of what is and isn't discrimination becomes massively more complicated when government DOES get involved.
Finally, social norms complicate matters further. du jure (I probably misspelled that) discrimination can exist via common social conventions. In short, if everyone makes black people go to the back of the bus, then there need not be a legal authority enforcing it. A large part of the race problem in the deep south that still faces some tension is the problem that in many cases racism is simply the way things are, leading to informal discrimination. My opinion is that it can take decades, and potentially centuries, to get rid of this form of discrimination, and government intervention is rarely beneficial (I regard it as a neutral effect). Yes, the Catholic Church may hate homosexuality, but in 100 years they might not. Forcing them to accept homosexuality may lead to a sort of "hollow hope" type of situation.