This is misleading as I can see there isn't any fact backing it up. Haven't you read about countries criminalizing the Bitcoin and the government cracking down hard on people for using it? There are lots of countries where Bitcoin is declared illegal. And anything illegal is criminal. Let's not waste space here citing these countries.

Let's even paint a scenario where all countries of the world accept bitcoin, it still won't be a global currency. The British Pound Sterling is a popular currency, yet it isn't a global currency like the American Dollar. There are countries that don't recognize the Pound in spite of it being a leading currency. I foresee this same situation with Bitcoin.