Yeah, you are right. We should start looking at how to move everything to IPv6 and how to manage the "authenticity" of IPs to prevent impostors' impersonation, etc... although it will be much harder for the user, because of how IPv6 adds up in terms of complexity.

Several problems in my view that create the situation:

• DNS dependency as a way to exploit the lack of IPv4 addresses.
• IPv4 with SSL is too expensive because of the lack of Public IP addresses (solution became the above problem)
• IPv6 is too complex to use as a human-readable form with SSL certs (and not using DNS).

The closest alternative that I see potentially becoming a standard is IPFS... or something like that.