So then to sum up:
- most every router/firewall already contains stateful firewall
- stateful firewall is what provides security
- NAT and stateful firewall are separate things
- NAT is irrelevant to security
- NAT is irrelevant to anonymity
Why then are you upset that IPv6 discourages NAT?
Why do you want IPv6 routers to use NAT for security?
What benefit do you expect future customers of IPv6 home network gear to get from NAT?