Re: Why do we need IPv6
"IPv4 at least makes it hard for them to call their maker and very hard for their maker to cold call them. I think that's good, not bad."
Yes, but that's largely irrelevant as they'll simply connect to their makers or try their best to circumvent NAT. After all virtually all of those IP-Cameras joining botnets were behind NAT.
BTW consumer routers with IPv6 support will still block unconfigured connections coming from the outside.