You complained about their parents' language ability. People you have never met.

My contentions remain: their parents speak English precisely the way you speak Chinese.

Your students read and write English much superior to the manner in which you are able to read and write Chinese, or Pinyin for that matter.

And your email address communicates quite clearly your views about Chinese education and students.

You are a fine example of FT mono-linguistic arrogance.

Your students deserve better.