Yeah, so? His native language may be Spanish and he may not be fluent in English. Do you speak more than one language (yes, I do). On top of that, we don't have a national language, if you want one then I suggest you march up to capitol hill and ask for it.
Lastly, there is simply no need to call someone out on there typing proficiency in any language as you have no idea of that person. It could be something simple like a language barrier or it could be something such as a disability. Either way, you dropping into a thread just to post that is pretty ignorant.