One of the articles I read was about a Japanese American family owning a big farm which was thankfully not confiscated by the state but while the owners were sent to prison camps that particular farm was taken over by a neighbour that operated it on his own accord for a fixed profit that he wanted then when the owners were released from the prison he returned their land to them and explained what he took and handed over the rest. Others were not fortunate.
Another case was when a Japanese American prominent businessman was forced to
sell his assets just for the miserly sum of just six cents to the dollar before he was forced in to a prison camp.
So yes, sadly land grab did play a part in the equation somewhere.
Did they also made German camps, and Italian camps? Surely the other axis countries would have supporters in American soil wouldn't they? Or was is something especially racist against Japanese?
Definitely too late, the victims of the State segregation are mostly gone by now...
They did not allow Germans or Italians to have a ham radio.
They did not jail them.
Having some Italian ancestors I am pretty sure of this to be a fact.
Japanese owned some good pieces of land in California some of it was stolen. So it was a land grab more than anything.