I always thought this way too, only I'm not so angry and violent about it. We really don't need to learn other languages... luckily I had a choice for my classes. Didn't you too, Amy?
Secondly, the reason most American schools want us to learn Spanish is because it really looks good on a resume, and because it's America's second language anyway. We're not forced to learn French in Canada, (choices in high school for our classes, yay) but if I were, I wouldn't be exactly thrilled about it, either.
Also, don't sweat it if you fail. Concentrate on your other, MORE IMPORTANT classes. :D