T&K are fundamentally dishonest about the role of euclidean zoning in american cities, who supports it and why it's so powerful. Their basic project is to strip environmental and labor protections by tying them to euclidean zoning and saying "it's all the same."
And by the way, they may get their way (Newsom is already forcing repeals of environmental protections in California while toasting Klein) but at the end of the day euclidean zoning will still be around, because it is supported by people who are way too powerful.
Another by the way: I remember fighting the big Chicago rezoning in 2004. They had us chasing our tails by trying to double the parking requirements and letting us fight to get them back down to where they were in the old code, feeling like we won a big victory.