On the plus side, this (staying with IPv4 behind NAT behind NAT...) will further instil the idea that an IP address is not a person. As soon as governments/corporations loose the ability to track/sue individual people, they'll be all over IPv6.
Coporation should not be synonymous with government. It might be the case that these are the same in a particular country or era, but we're not doomed to such a fate. Fascism can be stopped, but to do it we need to advocate the idea that state and economics should be as separate as state and church.
> Corporation should not be synonymous with government.
They aren't the same thing, but that doesn't prevent them from having features in common. They are both big, powerful entities that don't have my interests at heart, and are both therefore threats to my liberty (especially when they work together to undermine it).
So, I'm pretty sure I've heard people involved in carrier-grade NAT, NAT444, etc discussing what they have to in order to comply with requirements that IP:port tuples be usable to track back to their customers..