I don't know why this bothers some people so much...
I've spent time in other countries where I couldn't speak more than a few poorly-articulated words that had nothing
to do with medical care, and I've been lucky to always have been treated graciously by the locals. In fact, they usually felt guilty they didn't speak better English! I was in Spain last year and got a really bad jellyfish sting, and my leg swelled rapidly and badly. Probably a dozen people helped me find a nurse down the beach, who provided me with excellent, thoughtful care, and just made my day (the last thing you want is to be yelled at in another language while fearing you're going into anaphylaxis!).
Many immigrants are working their behinds off to make a living, and after 18 hour shifts at the meat-processing plant, learning another language is a little tough. It takes a lot of time to become fluent in a second (or third, fourth, or eighth language that English would be for many immigrants) - I took five years of French, and my language skills are embarassing when I need to use them!
I love living in an area where I'm surrounded by people of all ethnicities, and can hear a dozen different languages chattering in the early-morning Strip District, and where taking care of patients who hail from every corner of the globe is second-nature