OP, you are spinning this and putting words in Peter's mouth.
What he said is when the mining reward goes to 0 (in the year 2140),, its unclear what happens with the natural fee market.
No one in the BU camp is saying "we need to change the social contract and have more than 21M coins" which is what
you are implying.
Bitcoin will have a non-zero inflation rate for the next 120 years. And we could always decide to re-introduce the protocol enforced limit at that time if no other solution
is available.
protocols solidify with time, pretty sure 120 years from now the protocol rules are set in stone otherwise bitcoin would be a failure as a store of wealth
this implies exactly what it implies. anything but certain 21 million limit coin is untolerable.
not to mention bu mechanism profits even more from mining pool centralization
whole thing is trash. and in 120 years bu devs would have killed bitcoin already anyway.