Certain white people need to stop yelling about their phony oppression for sure. But telling them to shut up about race and gender just makes them feel more oppressed. I know what these people are thinking, that we used to be able to speak freely and now we cannot because we have to watch everything we say. If we make an honest mistake in how we word something, we get a very pejorative label applied to us. It feels authoritarian.
I think there's a perception among white, and apparently, Hispanic, Asian and Native American voters, that the left is all about identity politics and PC. Not all of those voters are conservative. Some range from center-left to center-right.
We can debate this all day but I think it's pretty clear that it's not a good selling point for dems. In 2020, I hope we go light on the identity politics and heavy on other important policy issues.