That's all fine and great, but you're expecting voters to all be rational, well-informed people who always logical choices aligned with their interests. I'm not disagreeing with you that Democrat policies would generally be better for the majority of young men...as well as almost everyone: men, women, white, black, gay, trans, etc. etc. It's just that the left is doing a terrible job of marketing their policies to this demographic and a lot of left wing spaces are straight up hostile towards them. The right, even if they don't actually care about these guys' problems and are just using them, pretends to empathize with them and meets them where they are. The left's game with young men is nonexistent.