All analogies are inherently wrong. Why talk about cars if the subject is *NOT* about cars? The only thing it _might_ show is a basic non-understanding of the things talked about in this very thread.
Satcomer: I get you. I hear you. But I think it's just the way things go. IPv6 is coming - and most people won't notice or even care. And I guess that's a good thing, too. If we can't make it happen without burdening the user, then there's something wrong with the process. Like you said: Mac users are basically ready for it, anyway.
Even today (and yesterday), most users have no idea about TCP/IP (IPv4). I'm always stunned how I have to simplify explanations for users. E-Mail settings: Same thing. Most users don't understand that webmail is somehow different to "real" E-Mail. They don't know about POP3 and IMAP4 and their differences. Most users don't have to care, though. Someone sets up their computer, and basically, it works. That's fine for them.
"The great technical divide" you're talking about is nothing new, and certainly isn't specifically about IPv6. There was a time when I explained everytime someone didn't get what I meant by IIRC, AFK, RTK etc. - but then I simply stopped. If someone was _really_ interested in understanding those, they could look it up. If they don't know how to google, evolution will solve the problem eventually.