Agreed, I noticed that too. I was hoping he'd just subconsciously lifted some phrases, but the amount of the overall similar content/structure and the specificity of phrases do really kinda push it to the level of plagiarism.
I am very familiar with Kunstler's talk and do cite it from time to time, but it's hard for me to see the basis for the notion that I ripped it off. Kunstler is hardly the only one to make New Urbanist architectural talking points or to formulate them in the way that he does, notwithstanding his rather specific sense of humour.
That said, I just rewatched Kunstler's talk (for the first time in maybe a year or two?), and I can certainly see why you say what you do, though I don't agree that it rises to the level of plagiarism; I sat there and made my formulations quite originally. It's probably a case of subconscious diffusion, as you suggest. I added a citation for his talk to the bottom of the post to reflect the discernible overlap.
That said, you really need to look at some other critical literature in this sphere. If you do, you might be led to accuse Kunstler of plagiarism! :-)