Here it is, let me know how dumb I am.
Bitcoin dominates --> Regular John sees writing on the wall as fiat currency crashes --> Bitcoin is too scare and pricey to get any amount equal to the dollars they've saved --> large companies, governments, and early adopters become hyper wealthy --> major wealth gap and misery for most of the world except us --> sad state
The population of our planet is growing at a huge rate, so billions of people live in poverty.
Bitcoin has nothing to do with it. Bitcoin has a mining cost and a transaction cost, if the transaction cost is very high, the number of users will decrease.