I finally got around to reading The death and life of great American Cities Despite being written in the early 60's and with the language of that era including talking about old New York as a current phenomena, I now have a greater understanding of the philosophy of the New Urbanists WARNING FUCKING AUTOPLAY FUCKING VIDEO. STOP THIS SHIT WEB DEVS.
Turns out that it it hard to build a neighborhood that can sustain itself over a longish period of time. Tearing down all the old buildings pushes out the poor an low margin people and enterprises. Making all the buildings the same kills the city's ability to have a viable street life. Urban planning is still rooted in the idea of an 1880-1890's city where there were slaughterhouses and factories. And the Baby Boomers are still idealizing the suburbs to a degree that warps reality.
When I get the moment I will go through their vids. thanks for the link.