No foreigners allowed signs in Japan

People have pointed out videos on YouTube showing various signs throughout Japan only permitting Japanese or Asians in business. People are using these signs as proof of the racist attitude of the Japanese. However upon further examination, the signs have nothing to do with racism, but more to do with the rude behavior of foreigners to that nation. Many Americans, Russians, and other assorted Westerners visit Japan and behave like ugly Americans. Engaging in rude, lewd behavior, and fisticuffs (bar fights with a total disregard for the Marques of Queensbury rules. It is this behavior which causes such signs to be erected in various businesses.