Thanks for the information, i didn't know that. Nevertheless, it doesn't change the fact such change will be accepted, at least without culture change or serious commitment from some Bitcoiner to make this change.
BIP42 is a fix to an accidental bug that made the money supply larger than anticipated. I think it is pretty clear that Satoshi did intend to make the money supply capped at 21 million right from the start.
IMHO this is actually
the most important principle of bitcoin that there is (besides perhaps decentralisation), so any proposal to increase the supply will likely be strongly rejected.