Everything you claim should be done is what Bernie Sanders supported and that got us nowhere.
It's really easy to get up on your high horse and claim that leftist identity politics is the problem instead of looking at the systemic failures of American democracy. Lobbying, Gerrymandering, media outlet control, anti-intellectual propaganda, voter disenfranchisement, an underfunded education system, the electoral college, a packed supreme court, etc.
This isn't a case of 'if you can stop being righteous and just hate gay people for a moment we could have had universal health care.' This is a case of the democratic process unravelling in its end stages as the popular candidate lost the vote four times in the seven presidential elections.