True, but, for most Americans, the "need" to become bilingual simply wasn't a thing until recently. (It became a thing mainly because US Spanish-speaking communities are slowly moving northward from where they began in the southernmost states.)
In Europe, it's much easier to run into someone who speaks a different language than you simply by driving to another town.
For the most part, the only two languages Americans have to worry about learning if they want to communicate with neighboring countries is French (because of Canada, although they also speak English) and Spanish (because of the countries to the US's south, including Mexico and others).
Americans almost never even hear other languages, let alone need to understand them. There's has been a culture here for over a century for immigrants to integrate and learn the language and culture of America as a replacement for their own. Three generations ago my relatives did this - they literally abandoned their last name in the process.