The 6 millions Jews was worst in term of number, but not in term of suffering from their rapes on women (and under-aged girls), killing babies, killing innocent... At least we prosecuted the war criminals on Jews but not those criminals on Chinese.
At least the German admitted their crimes but not the Japanese. I forgive them but not forget their crimes. Nanking Massacure movie can be rented from Netflix and even you're not a Chinese, you will be angry on how the old soldier boosted how they raped young girls. If you believe in Karma, the Tsunami were the tears of the victims.