Why would people think america was justified for japanese internment camps? why would people think america wasn’t?

The people who think it was justified tend to say that:

If it was Mexico who had attacked, the camp would be for MexicansThe World War 2 was a total war and governments were doing whatever it took to win the war, hence Pearl Harbor and also the atomic bomb.Considering how scary World War 2 was, it was just a matter of time until  Americans would go paranoid about Japanese spies

The counter arguments are usually:

America was doing the same thing that it was said to be fighting againstIt was not fair to the familiesThose were also american citizens and the xenophobia is unjustifiedIt was a violation of the constitutionIt was morally wrong