Answer:
Japanese Americans were sent to concentration camps in the desert & were treated as subhuman.
"P.S. No water on Sundays. Very very inconvenient..." - Letter from a young Japanese American girl to her friend
European Jews were sent not only to concentration camps but also death camps & were treated even WORSE. They were starved to the point that, upon rescue, they were too weak to even smile in gratitude, had to RE-LEARN how to eat, & the grown men wept with joy upon seeing a hot meal, saying they couldn't even remember the last time they had a hot meal. Those who died were buried in mass graves & the stench of death was SO bad the rescuers had to wear gas masks.