by that reasoning, Brazil should speak Spanish also...*shrug*...it just happened that the USA was settled in patterns that favored English. It could easily have been Spanish...or French, but it was many years before the US expanded into Texas and California and even came into contact with many Spanish speakers. We were dealing with more Irish and German and Swedish for most of the middle 1800s...then a war with Mexico made Spanish a pretty unpopular tongue for awhile....

and...if it had not been for pressure from Quebec, would the rest Canada have even pretended to take French seriously? Countries don't do things like that without overriding reasons, and "that's a nice language they speak next door" is not usually a reason for adopting it formally..