* Do you know what the Japanese did in China and South East Asia?
* Do you know how the Japanese treated the China Chinese Chinese,
Singapore Indians, Malays and Chinese + the other races included during
the war?
* I am not sure if your grandparents or grand uncles and aunties experienced
the war, anything from 1911 to 1945 era, if they did, talk to them to find
out how it was like.
Unless otherwise you are one of the rare irresponsible Japanese yourself, otherwise I don't think you would not make that comment.