Followed by the non-beneficiaries of urban identity politics cutting off trade with American urban areas.
"If Democrats and urban residents want to combat the rising tide of red that threatens to swamp and ruin this country, we need a new identity politics, an urban identity politics, one that argues for the cities, uses a rhetoric of urban values, and creates a tribal identity for liberals that's as powerful and attractive as the tribal identity Republicans have created for their constituents."
They already have that - it's called the Democratic Party. And its power is on the wane.