2/3 or 70% of the Japanese who were sent to internment camps were citizens by birth of the United States.  They were Americans, who for the most part, had never stepped foot in Japan. 
The Japanese-Americans who were interred had their basic civil rights under the Constitution denied.
There were over 112,000 men, women and children put into the camps.
Unlike the Japanese-Americans, the Germans and Italians who were arrested were NOT citizens and the few who were naturalized citizens who were Nazi supporters were treated far differently. 
It's funny that you mention the people living in Hawaii. Check your history to see how many of them were sent to camps. Most of those sent to camps lived in coastal areas of the U.S.
I think you got your information from watching Hollywood movies.
Try these resources.
https://trumanlibrary.org/whistlestop/study_collections/japanese_internment/index.php
https://trumanlibrary.org/whistlestop/study_collections/desegregation/large/index.php