When do you think the Democrats would have a decent chance of winning in general?

left needs a populist leader like obama was in the 2000s. Right now it's populism vs the establishment and the populist will always win

While there will be fluctuating victories, the Left in general is facing the massive backlash globally for their failure in handling immigration and integration.

While in general people are ok to help by accepting migrants who have challenges in home countries, the left failed to regulate, ensure that home society is not affected, failed to integrate and allowed the worst elements to run rampant at the cost to the existing citizens.

That is going to dominate the narrative for few years and Left is too tied into its messaging to break away from the narrative.

While some individual democrats might win due to other factors, in big picture, democrats and other Left parties have to wait, until the anti-immigrant sentiment subsides and the Right does its own set of mistakes, may swing hard to the other side.