I am very positive about my life in Japan, and came here to leave Britain behind, which is less comfortable both economically and socially. Every country has something minor that one can gripe about endlessly, be it the political system, bureaucracy or public transport. Griping about these things helps us to feel better about them, to get our petty annoyances out of our system.
There is a difference between moaning about petty inconveniences and complaining about racism.
To suggest that casual discrimination against foreigners by landlords, or that perpetuation of the myth that most burglary and pickpocketing is done by Chinese and Koreans, is a right that Japanese deserve is abhorrent. As a longtime resident of Japan, Gregory Clark should be more than aware of this.