The Democratic Party leadership is corrupt and those individuals are more interested in maintaining their own proximity to wealth and power than “winning” or providing any material benefit or protection for their supposed constituents. They don’t lose because they’re incompetent or tone deaf, they lose because they want to.

*or rather, they lose because it’s preferable to the left gaining power and taxing the rich, ending the private co-opting of the commons, and expanding the welfare state.