also requires shifting away from the progressive agenda that has made so many cities unliveable: from bans on energy sources such natural gas and a refusal to crack down on crime to the usually miserable state of urban public education.
I don't think the last of those is part of any progressive agenda. Probably the biggest factor in the deterioration of urban schools is white flight to those suburbs that Kotlin likes so much and the resulting loss of tax revenue.
Edit: I don't see why people are getting so irritated at my using the term "white flight." As far as I can tell it's the only recognized shorthand for this demographic trend.