Question

Why were Japanese Americans in Hawaii not forced to go to internment camps?

Answer 1

They weren't seen as a threat because they lived on a far away island separated from the continental United States. The fear was that people on the mainland could be spies or could participate in sabotages or similar things, while people on Hawaii were more or less isolated from the remainder of America and did not pose a threat at all.

Answer 2

The main reason why Japanese Americans in Hawaii were not forced to go to internment camps is because they were not seen as a potential threat to the United States because they were on a far-away isolated island.