This is a nice soothing fantasy, like every explanation in America that doesn't involve race. White Flight to the suburbs created the need for limited core urban bus service, with a transport-gap that can only be crossed by private car. We called that gap the "inner city".
David HoIs everyone aware of the General Motors streetcar conspiracy? In the mid-20th century, auto and oil interests bought up electric streetcar systems across the US and systematically replaced them with bus routes and paved roads, funneling commuters toward private cars.