If the Japanese histories and school textbooks described what really happened, I’d agree with you. The problem is though that the Japanese leadership and media and schools are either suppressing the truth or even glorifying an artificial view of their conduct during the war they started.
The last thing the world needs is a resurgent, militant Japan.
Which you may get as the PRC moves on the South China Sea and the US turns it back on it's treaty obligations.
With US foreign policy abandoning her allies, the global village is in for a wild ride.
Japan has no choice but to re-arm. One of my uncles was in the Bataan Death March, so my family has some understanding of Japanese inhumanity. However, citing mis-education of Japanese children as a concern is ironic given the state of American education.
The great danger the world faces is not a nuclear Japan, but an emasculated America, bereft of her own history and opposed to the very ideals she once epitomized.