Going to Japan as an english teacher carries as much weight as going to UK as a polish plumber.

That is not at all.

The job you're given is menial and the interest and respect towards you is faked. We're talking about a country who core cultural tenet is literally lying to your face in order not to start a fuss and then talk shit behind your back. Look up honne tatemae if you don't believe me.

That's why Unseen Japan is such a bitter whiner who put up a tough face on social media.