That's not exactly true. While China doesn't detain US citizens (yet!) it detains several Canadian citizens presumable because the Huawei's CFO has been arrested in Canada by a US request. See https://time.com/5626289/china-canada-arrest-yantai/
Which makes things even worse - you may become a hostage due to US/China conflicts even if you happened to be a citizen of a US ally.
> We interred Japanese after Japan commuted one of the largest terror attacks in US history, that’s it.
1.) "We" did not inter Japanese. Those who made the rules and followed them during that time did. If by "We" you mean "Americans" then that leads to the next point...
2.) Many of the "Japanese" you say were interred were Americans. They were put into camps not because of any actual reason than how they look and where their ancestry hailed from.
3.) Imprisoning people who have done nothing wrong and have lived their lives in this country should make painfully clear the quote, "Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety."