Language is difficult, but that's nothing new with teams from China. We've had communication issues with teams from Mexico, Brazil, Israel, etc.
But guess what? You encounter the exact same situation in your professional life! In my current position, I am frequently working and communicating with people in France, Belgium, Portugal, Italy, Japan, India, China etc. I have to be able to work with them and communicate on complex technical topics, just like students have to do with these teams at competition.
Beyond language... the "us vs them" mentality is largely a political/economical one. That's not what FIRST is about. Gracious Professionalism is what FIRST is about. As it states on the
FIRST website, "With Gracious Professionalism, fierce competition and mutual gain are not separate notions." So lets go compete against these people. Lets show them that they have a long way to go to compete on our level... and then lets help them get there. Lets show them what FIRST is all about.