i haven't taken any position on "bitcoin maxis". i'm only discussing the protocol and the limits of knowledge. you are making all manner of leaps of logic.
A Maxi would be unable to admit that there is no imaginable scenario where the bitcoin protocol will drop to the low energy requirements of a PoS blockchain.
i think you read a word that isn't there. the work of generating a nonce, hashing the header, and checking for leading zeroes can certainly be done by a raspberry pi in under the 10 minute block time.