First off Gene, interesting website. I'm perplexed, but intrigued. You seem to have a lot of ambitions.
Serial numbers are not a new innovation. All bike frames have serial numbers. All fancy wheels have serial numbers. All groupsets have serial numbers. Anyone can record their bikes' serial numbers, and even share them with their states' stolen-bike registry where you can post the serial number of stolen bikes, and bike resellers like pawn shops are supposed to check against it. Most places don't check, because there isn't really enforcement, and because it's more trouble than it's worth in most peoples' opinion.
It simply doesn't work. In part because US laws basically don't punish criminals who steal less than $1000 or so in value. And police aren't even interested in investigating bike thefts for bikes that are worth more, because they aren't worth that much compared to other crimes like home burglaries and car thefts.
The other issue is that the VIN system literally costs money, we pay car registration fees which in-turn pays for the record-keeping that makes the VIN system useful. The VIN system works fairly well in cars because they are an order of magnitude more in value, so people are willing to spend a little more for the extra time it costs to deal with the VIN system. People are evidently not motivated to pay $20-50 yearly to register their bike to a bike registry system, because pretty much every past effort has failed.
The premise a bike will get stolen before a 70k SUV with the keys in the the ignition would, is also simply not necessarily true in the US. Depending on the city you're in, car theft is a much bigger problem in the US in terms of total monetary value stolen, and similarly the criminal justice system is not responding to increases in car thefts (see "Connecticut Kia Boys" on youtube). There is also a fairly large black-market for exporting high-value cars that circumvents the VIN system entirely.
I appreciate the thought of trying to prevent bike theft. But this idea barely works well for cars, has been tried before in bikes, and it isn't the answer.