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".
There is no comparison between a hard fork to raise the blocksize and a hard fork to increase the 21 milion cap on supply. The former is a minor property that almost everyone agrees will need to be changed at some point. I owned Bitcoins for years before I even know there was a max blocksize. I knew of the 21 MM limit before I bought my first coin.
A slippery slope argument is a logical fallacy.
https://en.wikipedia.org/wiki/Slippery_slopeDude increasing the 21 M limit and increasing the block size is the same thing.
oh really? I'd like to hear an explanation. How the hell is it the same thing? It's not even remotely the same thing.
I explained it to you many times already but fine. Things (w/e they are) only have value if the supply is limited and they have a purpose. How limited something is determines it's value (together with its utility value). The block size at the moment is in limited supply (1 MB roughly every 10 minutes), so a place on that has a certain implied value (this will be the fee in the long term, right now it's not very visible because of the huge subsidy which skews actual fees). The value of the sum of the fees determines the amount of security because this is how the miners are paid (the miner market is a commodity market so it will approach break-even long term. Total fees will equal security). Therefore if the block size is increased the value of size on the block chain goes down and thus the amount miners get paid goes down and so does the security.
Security is the most important thing giving value to XMR units and so a lower security will lower the intrinsic value of Bitcoin.
Similarly increasing the 21M coin limit will also lower the intrinsic value of Bitcoin because it inflates the supply (more unit available).
Next to all this there is the precedent reasoning mentioned above. Right now I trust Bitcoin to never inflate supply of either limited unit (XMR or block chain size) and therefore value Bitcoin as such. If they inflate it I will be forced to estimate future watering down of XMR and blockchain size (and thus watering down of value) in my intrinsic value calculations and therefore I will be prepared to pay a lower price for Bitcoins as an investment. The market will do the same.