It's because it's being peddled by the same "oh, I know how we'll use government to fix this problem that isn't top 10 on anyone's list" types who's in previous generations gave us unwalkable cities, unaffordable housing, and the modern urban-suburban hellscape.

While individual points are supported or resisted individually and by individuals, when you sum it up on a population level it's like a gut reaction against listening to someone who's lead you astray before.

Basically the people pushing changes lack the political and cultural capital to see them through because the capital was wasted for naught in decades past.