Yes walking is good, driving is bad, I think we figured that out a long time ago.

So the solution then, is to create even more waste by rebuilding cities to recreate the exact cityscapes that already exists. Instead of malls we have open store fronts in a vast open area people can walk through.

To get to these wonderful open walkable spaces we drive our vehicles. I certainly don't envision anyone walking 5-10kms to an open walkable space. How do people get to Time Square, they travel by vehicle of course.

In the end what problem have you actually solved?