Comparing the size of continents to the size of countries doesn't seem particularly reasonable.Fact, but not by much. Europe: 3.93 million square miles, US: 3.80 million square miles.* The difference is about the size of Finland in Europe, or less than the size of Montana in the US. Europe is 50 sovereign states, US is one so yeah, differences there.
And now, back to our regularly-scheduled programming…
*Wikipedia
But this seems interesting.....