you should look into the *history* of money, and what it takes to establish a currency that hits all 3 of those targets.
#Bitcoin has proven its capability of being a store of value and unit of account on the core layer, and has achieved the early stages of Visa scalability (Fiat L2) through Lightning which will allow the *final* step which is becoming a medium of exchange.
I urge you to do some more open minded research because #Bitcoin *is* succeeding, or at bare minimum offer a better alternative🍻 