Deregulation would be a horrible idea, given the disasters that created over time. If we want town centers over suburbs, that’s a great goal, and zoning needs to support that. Zoning should be a tool for creating places we want to live.
I’m sure it helps that my town was built out before cars, but we have zoning encouraging denser housing near transit and near town centers, we have a great walkable “Main Street” with shops and restaurants, and parking in back. And we don’t have “stroads”
Fixing Bad zoning doesn’t mean throwing out zoning, it means revisit your end goals and ensure zoning supports them.
And yes we have sufficient parking for everyone. However we can get away with less parking by making walking and transit convenient; it doesn’t start by making things tough to get to