Yes, I agree. Part of walkable should include work where possible.
I have lived a scenario similar to the one we are sketching out here and it was great! Live, work, play... I also had the airport available. Could walk out my front door and end up on the other coast that same day.
There are externalities too.
Which is it?
Sell more cars, take those externalities, or live leaner, gamble on the economics working out differently and that being OK?
Someone is gonna lose. Could be a lot of us losing, or maybe not, depending.