>First, commercial property taxes in California are generally higher than residential.
Sure, but businesses making _more_ for an area doesn't mean residential areas aren't profitable.
>the bit of road your car is parked on usually costs more than the car.
Sensational nonsense. ~100sq ft of black tar asphalt, barring some kind of bananna republic corruption scheme, could never cost _more_ than an average automobile. Think about how absurd that statement is, and reevaluate why your internal filters allowed that statement through.
>Now walk around your neighborhood and look at how much road there is. ALL of it costs that much. Most of us don't think about it, but it has to be paid for somehow. And it really isn't cheap.
The premise is absurd, so the conclusion from it is invalid.