pull down to refresh

I don't think this comparison fits well with the monetary system. Fiat isn't legal tender because it's better than gold, but because it's fiat, it's a state order: "Use this because if you don't use this inflated currency that my corporation creates out of thin air, I'll rob you."
Bitcoin is money and should be used as such, as it was designed. But most of the examples you gave are of people holding it as a speculative asset and not using it as money.
I think these two points are critical to your text. Not that everything is disposable, but comparing money to natural selection isn't a good analogy.