I think progressives never thought about this because we banked on immigration and demographic change allowing us to win culturally and electorally but the issue is immigrants tend to be overwhelmingly male, that is how Trump won actually he won over a lot of Hispanic,Black,Asian and indigenous men who feel humiliated by a new culture, economy and world.
So what can we do rhetorically and policy wise to win more young men over ?
That’s why movements should be built around goals and not allegiance/morality.
“This is the movement to achieve X.”
“X has been achieved.”
“Aight, job well done, time to move on.”
This is what the right does (or tries to, anyway), and they’re eating the left alive, maybe it’s worth taking this very non-partisan strategy from their playbook?