Oy, although I still suspect a troll here, I will answer your question.
I wouldn’t consider a bias on nationality as far as English teaching in Taiwan is concerned. What I see is that people want native English speakers. That in itself does not make someone a good teacher but it does mean that English is their first language. If a school wanted a teacher that isn’t a native speaker then there are many Taiwanese that could do the job. The only thing most Taiwanese aren’t capable of is being a “native speaker” of English.
In my opinion, it is evident, now I will be honest here, from your writing that you are not a native speaker of English and have many errors that many English students in Taiwan would not make. Sorry, but that is the truth.
Following an IP is not proof. If you follow my Hinet Ip it sometimes says that I am in Australia. I don’t use a proxy and this still happens. So, either Oy is for real, using a proxy server for a really silly prank, or there is something wrong with IP tracing. Hexuan???