The Democrat line up for 2020 is interesting with a mixed bag of freaks, designed to appeal to any one of a number of social justice warriors.
The problem that they have is that all of their constituents do not have the same sorts of grievances. Some gender warriors who want to be willing to change the way they identify their kinks at will are uncomfortable with “fungible race”. Racial warriors don’t like the idea that a white person with ancestry from Iceland can (on a whim) self-identify as a black person from Botswana.
Herein lies the problem that they are experiencing.
President Trump’s economic policies that focus on the achieved goal of full employment for all crosses those grievance lines. Sure, some people still make more than others, and people like Bernie Sanders would like to fix that in the communist way of making almost everyone except the most elite, poor. They focus on envy. Envy is a winning sin, but full employment and a booming economy throws a lot of water on envy.