The core of liberalism (or progressivism or leftism or whatever euphemism they’re using these days to make it more palatable) is Marxism. And Marxism flat says that any means to its ends are justified. That means there are no moral limits on what its disciples can say or do. If they need to say X one day and Not X the next, it’s perfectly okay in their world.
Nowhere was this made clearer than when Bill Clinton stood accused of sexually assaulting several women, and so-called feminists, who a few years before had howled in outrage at Clarence Thomas for allegedly making a bawdy remark to Anita Hill, defended Clinton or remained silent, on the grounds that “he may be a pervert, but at least he’s OUR pervert.”
It was the ultimate demonstration of the hollowness, the utter moral bankruptcy, of the Left.
The cardinal sin to liberals is...oddly enough..Hypocrisy.
Their defense against being accused of hypocrisy is a bizzare combination of Rousseauian Moral Relativism coupled with a strain of Orwellian Doublethink. They believe that all behaviors are matters of personal choice (except in the case of homosexuality) regardless of consequence, and one type of behavior is equally as valid as another.
To put it another way, they don’t have any values or standards. If you don’t have values or standards, you can never be called to be held to them, and can never be accused of Hypocrisy.
Most conservatives understand the Christian concept of hate the sin, love the sinner. We know that people are not pefect, but we do think that standards should be there as, at the very minimum, a goal to strive for. If you don’t reach those standards, you try to learn from the experience and learn to try again.
Liberals think that every kid is going to have sex no matter what is done or said, so there is no valid reason to discourage it. And if you can’t bring yourself to discourage it, then there is no reason you should make them suffer for doing something they can’t help doing anyway.
It just occurred to me that liberals might even go so far as to supply safe areas for kids to have sex, so they wouldn’t do it in the woods or in a dangerous building. Perhaps they already have, and I have simply not noticed.