Maybe many minorities and members of disadvantaged groups don't like being told that the pressing issues which affect their communities are just "identity politics," which seems to me to happen a lot lately.
Of course; it's insulting to have these issues reduced to a phrase like that. It's also insulting to have these issues reduced to a plug on the campaign trail and then ignored for the next year or two until the next big campaign​, or used as a weapon by one rich old white lady against an affluent old Jewish guy to score political points (for example).
You want to see the typical Democratic interaction with minorities on a political level? Look at Flint, during the Primaries and general election, and compare it to now.
You want to see the typical Democratic interaction with minorities on a political level? Look at Flint, during the Primaries and general election, and compare it to now.