I agree -- but they don't. Let's imagine that the Internet started with IPv6 and NAT never became the standard. How many legacy routers would there be floating

I agree -- but they don't. Let's imagine that the Internet started with IPv6 and NAT never became the standard. How many legacy routers would there be floating around with no built-in firewall? How would that affect the security landscape? Everyone seems to misunderstand that I am not advocating for what should be/should have been, but instead providing the benefits of how things played out given the reality of the world.