https://simplelogin.io/ (owned by Proton) is great for this. They have a feature to generate an email address by random word or even by uuid.

iOS has Lockdown Mode which it sounds like you could benefit from.

Also on iOS: Settings > Phone > Silence Unknown Callers

Looks like you’re paying $138/yr for Proton, SL, and vpn. Consider getting Proton Unlimited for $120/yr which includes all of the above, and use Proton vpn.

Are all of those drives powered up constantly? What’s your power bill like?

Memorize and practice this! You can do it in 2 seconds.

It’s probably too complex for what you’re looking for, but https://www.kannel.org/ is a large-scale SMS gateway.

Ditching TCP/IP and defining a whole new protocol stack would require your ISP to have routers that know how to route this new protocol without IP addresses. Also, every router between the source and destination would have to support the protocol also. That seems like a huge hurdle. We can’t even get mainstream ISPs to support IPv6 in the last 25 years.

Unless the author intends to layer this on top of IP, which defeats the defined goal.

If you did this, you would be running your own “Internet” with only your own routers connecting to each other.