As far as being offered an option of repatriation, the US made a deal with latin American countries to ACCEPT all their Japanese as detainees here.
We even had Canadian Japanese held as detainees. Didn't matter what their citizenship was ~
The vast majority of detained Japanese-Americans were American citizens. The vast majority of detained Germans were German citizens.
The US population at the time had at least 35 million people who KNEW they had German ancestry ~ Harry Truman had German ancestry. Arguably so did Roosevelt although I think the Germans cleverly tricked the Dutch into accepting that particular province way back in the Dark Ages.
Right. Thats why I included parenthesis.
The majority - 63%.