If the progressives wish to ignore non-modern, "superstitious" morality dimensions heroically, they are acting irresponsibly on a grand scale. Rather than telling to outdo conservatives in bad appeals, all I would ask is to show some historical intelligence and perceivable charisma skills - just to attract attention of those not that passionate about modernity goods.

But apparently progressive leaders are doubling down on a trajectory that most folks do not wish to follow. Take Elisabeth Warren as a trooper for those social justices:

A supporter approaches you and says, "Senator, I'm old-fashioned and my faith teaches me that marriage is between one man and one woman." What is your response?

Well, I'm going to assume it's a guy who said that - She would not consider is was a woman.

Then just marry one woman. I'm cool with that. - Most likely, that kind of guy has a compliant wife.

Assuming you can find one. - Ha ha! Spoken downwards from a position of power, with visible satisfaction. Not classy, really.