I understand your pessimism but believe IPv6 is coming.

I worked on network management software, the kind of software that runs on out of band networks that are unlikely to ever need IPv6. In the beginning IPv6 was a required feature for sales but it was accepted that no one was going to use it so little effort was put into testing it. More recently, it HAS to work. It is being used in anger internally in large telecoms companies.

I expect adoption to proceed at a glacial pace until some tipping point. Consumer ISPs will be the last to adopt it.