Neoliberalism in the early 90s pulled in a few people from the Republican party, cost a shit ton of voters who had been faithfully voting D for their whole lives, and despite never really pulling anymore voters than that initial wave, the DNC still wants to continue the march to Reagan era trickle down economics hoping they can guilt trip voters because Republicans have gone absolutely insane on social issues to differentiate.

Meanwhile a candidate with an actual "centrist" economic policy isn't something we've been able to vote for in a generation, let alone someone that would be described as "leftwing" in any other 1st world country. Because the billionaires donate to both parties to ensure they always win.

The only difference were allowed to have these days is social issues, and apparently it's so bad now that genocide is one of the things the American public isn't allowed to have a day in anymore.