Hello there
I am sure you will get a few posters eagerly gnawing over this particular bone of contention; but for myself, I have very little to say about it other than it's self evident that English speakers make the best teachers, and that oral English hasn't much to do with higher academics. I will say that the Chinese have every right to hire whosoever they please- if they are stupid enough and greedy enough to hire barely understandable Africans posing as Americans...well, it is their country- not something I actually lose sleep about.