I don't necessarily disagree with you that there will be people that want more than 21m coins.
An argument like that will never be presented "we want more coins and high inflation for the lolz".
It will be presented as "we want cheap txs".... Arguments like
"People want cheap txs, who are you to stop that".... Populist bullshit like "bigger blocks" and the "dangers" of "fullblockalypse".