If your ISP is assigning you a single IPv6 address, they are doing IPv6 wrong. You should be getting your own /56.
Reality is that lots of ISPs do this right. And have for a very long time.
The fact that porn was allowed on VHS wasn't a failure of the Betamax technology.
Preventing key-jamming on typewriters is not a failure of Dvorak.
The technology does not matter, the real world decides. Right now, there is no reason for people to care about IPv6, other than when it's the cause of issues.