One area the Dems/the left absolutely have to improve is appealing to men.
Over the last decade or so, left spaces and discourse have had an overwhelmingly negative attitude towards masculinity, constantly framing it "toxic", "problematic" and as inherently oppressive and misogynistic.
The problem is, this drives young men right into the arms of folks like Andrew Tate or Joe Rogan and from there to Trumpism, because if you feel like the left is constantly shitting on you, you'll naturally gravitate to the right.