What a weird statement. Seems like he was trying to start some trouble since he hasn't been man (or woman) enough to post his reasons in this forum yet. Hey, did you ever think that maybe they hate YOU, and YOU ONLY, because of the way you act?
I have a relationship with Japan that spans over 30 years. 16 of those years living, working, and going to school there. I still visit at least once a year, sometimes more, and in all my years I have never felt like you do. Maybe it's because I took the time to learn their language and customs instead of imposing mine on them.
Sure, I knew "gaijin" who lived there 2 or 3 years to make a quick buck teaching English and 99% of them never even tried to learn the language. All they did was "***** and moan" about how "bad" the country was and how their customs sucked. They never even tried to understand the culture. They thought that, because they were American, everybody had to bow down to them. Seems like you may be one of those.
I also knew people from the bases who were stationed 3 years or more and maybe once or twice a year they dared to venture off base. And even those times, they had to go in a group with other Americans. They never learned the customs or culture, but are proud to tell all the folks back home that they "lived" in Japan and how Japan is so backwards and weird.
So before you make an idiotic statement like that how about backing it up with some facts? Or aren't you man enough?