What have we ever done to them?
Well, in all the Pacific coast states we (meaning the government) rounded up all the citizens and legal residents of Japanese heritage in 1942, and imprisoned them in concentration camps for years. A lot of those people had farms, businesses, and homes that were grabbed for pennies on the dollar by whites. There was no due process, no criminal charges, no right to defend themselves in court, etc. They were just herded into pens like animals because of their race. Even some Chinese people were arrested, harassed, and robbed during the process because it was all based on racism instead of any sort of legal process.
My wife's grandfather was the publisher of a Japanese-language newspaper on Maui in 1941. He was completely loyal to America and was a very well-respected businessman. He was arrested and imprisoned just because he was influential. He was never charged with any crime, but he spent the last year of his life in a federal prison, and then he died there.
During that very same time, several of his sons and nephews were fighting the Nazis in highly-decorated army units across Europe. Some of them died there.
That's something we did to them...