I think the hard answer is - the Dems need to actually do things that dissatisfy people like me if they want to actually win the masses - working class, blue collar, etc voter back.
Currently they are focussed on everything other than class. Identity politics. Race, gender, sexuality, immigration status, etc. None of this is particularly threatening to people like me and is a moral good, but it should be secondary to actually helping the poor regardless of how they identify.
Left wing parties elsewhere push for more redistributive policies than the Dems ever dream of here. Instead they do hand-outs to constituencies that aren't in dire need, and already vote Dem anyway. Student loan forgiveness, EV tax credits, etc.
Meanwhile in UK & EU, even the vaguely upper end of middle class pay marginal tax rates that would make $1M/year US earners cry. This is where the revenue comes for the depth & breadth of their social programs.
Should the US go that far? Absolutely not. It would stifle innovation, growth, and what makes the US far more successful than our rich peers. But Dems need to break free of the thinking that if we just tax a few billionaires, all our problems will be solved.
This is an interesting list that 100% reflects what Republicans in my state ran on and Democrats only mentioned them when on defense (except immigration, which they clearly took point on before trump torpedoed the bipartisan effort to work on it)
> EV tax credits
These were absolutely needed to kickstart the EV market, just like oil subsidies were needed to keep the American economy moving so people and goods could get from place to place.