There seems to be a pattern here
Today's NY Times Sunday Dialogue ponders "Can Suburbs Help Cities?" The idea of regionalism has been kicking around for a long time. Those who have moved to the suburbs, so the story goes, have skirted their obligations to those "left behind" in the cities. Simple justice requires that they not get away with this and that we corral them via regional government There is the linked idea that suburbanites get benefits from the cities that they do no fully pay for.
Robert Frank in the New York Times: "For Obamacare to Work, Everyone Must Be In".
And, of course, we can't permit charter schools or vouchers to take money and good students away from the regular public schools. Good students and money must be held hostage in lousy schools.
Liberals believe in thousands of colors of diversity provided everybody is roped into whatever Liberals want.