The problem the D's have is that their whole message has been based upon Hate. No positive ideas at all.
Before the 2016 election, I lived in a critical battleground state, and all we saw on TV for months were Hate Ads against Trump. Hillary Clinton didn't say anything about positivity at all, offered no positive programs, not even insanely liberal ones like Homosexual Marriage or Socialized Medicine, and how great they would be for everyone. Just pure, unadulterated Hatred for Donald J. Trump supporters, the peasants.
Since then , its just been more of the same. Resistance to everything and no positive agenda at all.
Instead of Congress working on tremendous infrastructure, Chuck and Nancy said no, we want to impeach.
Really, the Democrats need to get positive. Come up with ideas to reduce taxes, increase freedom, instead of just increasing hate.