More can be written, but you might like to see my previous reply to "Was there any serious opposition to American interment of Japanese in WWII?" . There's not just a pointer to "What were the reactions to Japanese internment when it was happening?" by /u/sakuraxatsume , mentioned by Georgy_K_Zhukov in "Sunday Digest | Interesting & Overlooked Posts | June 25, 2018–July 01, 2018", but they also appended a reply with some more information.

(For searching, https://redditsearch.io/ is often useful. In this case, a standard Reddit search for internment reaction works.)

This is not to discourage discussion. More questions, data, and debate are welcome.