Bitcoin is not about making rapid global transactions with little or no fee. Bitcoin is about preventing monetary tyranny. That is its raison d’ętre.
Monetary tyranny can take many ugly forms. It can be deliberate inflation, persecutory capital controls, prearranged defaults within the banking cartel, or even worse, blatant sovereign confiscation. Sadly, those threats are a potential in almost any jurisdiction in the world today. The United States does not have a monopoly on monetary repression and monetary tyranny.
Once the State is removed from the monetary sphere and loses the ability to define legal tender, its power becomes relegated to direct legislative and enforcement measures that do not immorally manipulate a currency. Taxes for wars and domestic misadventures will have to be raised the old-fashioned way — that is to say government money cannot be raised by simply debasing the currency.