In the US, driving is a hard sell to call a privilege. It's basically a necessity. When society is designed around the assumption of getting around by car, it's no longer a privilege.
Also,
> So your plate is really the proof that you've paid a bit for the infrastructure to drive on.
You paid for a bit of the infrastructure being driven on just by being a tax payer.
That's one of the best ways to do business. You take something that is technically a privilege, turn it into a necessity, and then charge through the nose for it. It makes you very rich and very powerful.