Nobody is suggesting that you put a light rail out to the local farm. The urban area will be urban and the rural area will be rural. Where work is needed is connecting up the suburbs and ensuring that you can get to your places of work/school/etc without driving. Some cities never deconstructed themselves for cars (see SF/NYC) and are doing well. Other cities (see Cincinnati, OKC, etc) have room to grow.
Nobody is suggesting that you put a light rail out to the local farm. The urban area will be urban and the rural area will be rural. Where work is needed is connecting up the suburbs and ensuring that you can get to your places of work/school/etc without driving. Some cities never deconstructed themselves for cars (see SF/NYC) and are doing well. Other cities (see Cincinnati, OKC, etc) have room to grow.