Depending on where you live in the world it’s just not possible for some people to live in one of those idealist walkable cities do to systemic segregation. Can’t afford to live there but that particular area still needs workers. This ideal community is reserved for a certain class of people.

Putting up some bollards to pedestrianize a street isn’t expensive.

I’m not sure where race comes into it.

It’s just car-brained car supremacy.

I never mentioned race.
So what is the “systematic segregation” you mention? Whether they are left-handed or right-handed?
I assumed they meant based on wealth