Do you think the Germans or the Japanese WOULDN'T HAVE?
That was the same argument used back in 1898 only different. After we defeated Spain people argued that we should give the Philippines their independence. The imperialists said they were too weak, one of the European powers would move in so we might as well have it for ourselves. Face it, Spain was there, we picked a fight and stole their possessions. That's like robbing a beggar and saying "if I didn't somebody else would have." True perhaps but not moral. On an individual basis the law calls it murder and theft. Why is it anything else when nations do it?