You are wise to think this now! I experienced exactly what you are worried about. I had been a nurse for 12 years before I went to a community hospital to work , where about 60% are Filipino nurses, because the hospital sponsored many Filipino nurses to immigrant to US. And per contract they should work in the hospital for 4 years before they can look for another new job in US. But many stayed there for 20 + years and a few left, then more and more are coming every year. Some of them are nice, but I had a very bad experience with two of them, they often talk in their own language to curse me or others, and they have cliques, but they don't know that I understand some of their language. But I was alone, a foreigner, from a different country, I didn't have support and energy to deal with them. I thought that the nursing job is already very stressful, I don't have to deal with so much politics, so I left the hospital. Now I am working in a different hospital, still stressful, but I feel safer!!!