Clearly ipv6 is very flawed and by now the community should consider it a failure and work on a viable replacement.
We need an internet protocol that is backwards compatible with ipv4 and does not require deploying and maintaining entirely parallel networks, interfaces, firewalls, routing, etc.
If ipv6 actually was viable, the internet would have cut over. Instead we’re on a path to support ipv4 and ipv6 in parallel essentially forever.
IPv6 is perfectly viable and it is in many ways cleaner than IPv4 is. It’s just that transition is expensive and apathy is easy.
It’s impossible to finish a transition when the old version has no end of life in sight.
The end of life is gonna happen when ipv4 addresses end up being cost prohibitive. They are already some $50 an ip address.
That is gonna be cost prohibitive in developing Countries, who already are making a transition to ipv6.
Developed countries will pay obscene amounts for ipv4 space. Just as they do for shorthand .com domains.
By this metric, we still haven't finished migrating to v4.