Ask anyone from Venezuela how they feel about inflation. Ask anyone who was an adult in the U.S. in the 1970's what they think about inflation. I'm guessing that you don't think inflation is bad because you have never really experienced it.
I'm pretty sure fiat is supposed to have inflation built into it in order to keep people spending rather than hoarding cash--and yeah, those two examples you gave are when it all goes wrong.
I don't think bitcoin needs any more inflation added to it, else we might see it become like dogecoin, which can't seem to ever keep any gains in price that it makes.
In addition, I've always harbored doubts as to whether any crypto is going to be useful for anything other than speculation, and I certainly doubt that a "stock split" maneuver would help that much. The issue has always been adoption--by merchants and consumers. Until goods & services start to be priced in terms of
BTC (and not the USD, for example), and until people start getting paid in bitcoin, there's no motivation for the average person to use it to buy anything. Right now fiat works just fine. That certainly could change if, for example, the USD crashed but in an event like that I suspect people would try to get their hands on a
stable currency, which would probably be the fiat currency from another country. I don't think they'd start turning to a volatile currency that could cause them to lose even more money.
OP, glad you're thinking about stuff like this. I just happen to not agree with your ideas here.