The abortions that I know, are strictly against Catholics.

Na IPv6 goes back to what ipv4 was when there isn’t a public and private range. Private ranges were due to ip exhaustion. NAT is then used.

With ipv6 you subnet your Lan with ipv6 delegate range from your ISP. Basically it’s like subnetting your lan with a public ipv4 range. No nat required. As a firewall is used to stop packets not NAT. Also ipv4 RFC1918 doesn’t provide a few thousand for private, it provides 17 million.