IPv6 DOES support NAT.
If you've got a car that can't go 100, that doesn't mean nobody can, or that it doesn't exist. I don't care if you can't do it, it IS supported in the spec.
That is the same argument with USB, USB support x, but 90% of USB dont implement it. In reality that is no different to not supported.
That’s an interesting analogy because there’s several ways you could easily dismiss it.
For example: if roads aren’t built to support cars travelling at 100 miles per hour then it doesn’t matter how much you argue that cars are can do 100MPH, because you’re still not going to be travelling at 100MPH.
Or
But if the only cars that can travel at 100 MPH are Bugatti Veyrons then it’s safe to say that 100MPH cars isn’t something available to even the average consumer of high end sports cars.
Or
Sure, some cars can travel at 100 MPH, but they’re so unstable at those speeds that it’s not even safe to attempted it.
…You get the idea.