I think it's more that they look down on other Asian ethnicities and have negative views plus a superiority complex towards most of them than straight up hating them. Although you do get the latter as well. Truth is Imperial Japan was mainly concerned with increasing their own imperial rule or else they would have not been murdering or raping other Asians at every turn. Even the Germans were disgusted. The only ones that have a positive view on them are incel Asian Americunts. They deserve the same treatment of the Goldens who got killed by Imperial Japanese. The difference is Asian Americunts aren't innocent. Both Korea and China was also playing catch ups with the West at the time, so they set back Asia by quite a bit and they didn't treat SEAs much better either, sided with and collaborated with the French against the Viets, look up the brutalities during japanese occupation in the Philippines etc. Every Asian nation was glad when Japan lost its grasp on Asia, by all accounts from the people who actually lived through it, they were even more brutal than the Eurocucks. So that is where the "pink saviour" trope and starry eyed towards the pinkoids came from and any hopes of a semblence of pan-Asianism thrown out the window. And now China, another East Asian power is climbing to the top. Of course the surrounding Asian nations are going to be fearful and untrusting and susceptible to NATO infiltration and brainwashing. It's bad history.