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 ?
Reframe spending as stimulating the economy.
Create jobs through a green new deal that allows for upeard mobility for the motivated. Small business grants.
Create tax incentives for, endorse and give loam grants to businesses that provide workers with a share of a company. Whether co-op type thing or convoluted stock share program.
Young men want to matter, and they want to see the results of their effort.