There are actually 2 things wrong. The first is the delusion that the Democratic wing of the corporate duopoly party has anything whatever to do with progressives. They ignore them when they're there, and when they can't be ignored any longer or the Dems see an opportunity, they chase them not only out of the party but out of politics. Dennis Kucinich is only one example, gerrymandered out by a unipartisan duopoly team after having the temerity to hold out a week or so too long against the "Aid to Insurance Companies Act" aka Obamacare. You want progressives? Vote for Green Party candidates.
The other problem is that while education, poverty, racism and more are very important problems, there is only one issue now and for the next 5 generations. That's Climate Catastrophe and the larger ecological crisis. As far as we know, we can solve it; many of the solutions will also put people in power who will naturally favor the progressive stance on most if not all of those other issues, but they must be secondary to the survival of the human race and millions of other species in the face of still-rising greenhouse gas emissions and ecological deterioration. To the extent that education can help us in the long run with our ecological crisis it needs to be worked on, but for civilization to have a chance we have to reduce fossil fuel use by at least 90% in the next 15 years; we have to reforest the planet and transform agriculture and industry to ecological forms, and that is a staggering task that can't be accomplished if we don't focus exclusively on that for the duration of the crisis.