You can already use ipv6 as an overlay network ontop of ipv4 and not worry about whatever wacky shit middle nodes are doing https://tunnelbroker.net/ https://t

You can already use ipv6 as an overlay network ontop of ipv4 and not worry about whatever wacky shit middle nodes are doing https://tunnelbroker.net/ https://tunnelbroker.net/ https://en.wikipedia.org/wiki/List_of_IPv6_tunnel_brokers https://en.wikipedia.org/wiki/List_of_IPv6_tunnel_brokers https://en.wikipedia.org/wiki/6to4 https://en.wikipedia.org/wiki/6to4 The time to bikeshed this stuff is long, long passed, take the time, understand the options, stop writing off ipv6 as impractical, or never going to happen, nobody is writing a (different) overlay network.