C'mon. 15 minute cities have never existed.

From Wiki: "The ongoing climate crisis and global COVID-19 pandemic have prompted a heightened focus on the 15-minute city concept. In July 2020, the C40 Cities Climate Leadership Group published a framework for cities to "build back better" using the 15-minute concept, referring specifically to plans implemented in Milan, Madrid, Edinburgh, and Seattle after COVID-19 outbreaks"

It is and always has been a concept, and I think you've overlooked what these implementations are proposing. Implemented after COVID because it's another excuse to introduce more "temporary" government measures.

Harlem isn't a 15 minute city, not even remotely in the same way that they are proposing.

"Cars are highly destructive to society in SO many ways. Once you "see it" you can't unsee it. The problem is they're so engrained that most people never question their impact."

As a city dweller, you have no use for a car, so to you that now that means that no one should have access to cars because you've made up a bunch of reasons and it wouldn't impact you.

Cars provide a net benefit, calling them highly destructive is highly disingenuous.

Imagine the world was going into an ice-age, and then imagine believing that running your car would somehow have an impact on preventing that. It's a fairy tale.