Absolutely right Dominican. I think of how any pilot in the U.S. would treat foreigners coming over and taking our jobs and I would give an even cooler reception. As their union rules are set up contract flying is allowed and given the state of their general aviation (ie. future airline pilot pipeline) it's a neccessity even though they don't like it. So I totally understand their attitude towards non-Japanese, just a warning to Lear who may be going into it with a little too much naivete'.
I'm here because I like it in Japan, speak the language and get along well. I just let the insults and such slide off and use my Gaijin license when needed and things usually turn out right. This can be a great gig if you go into it with the "right" attitude but can drive some to suicide or homicide otherwise.
Good Luck!