Putting individual people through a trial that they actually committed an act of treason or terrorism at least gives them the rights afforded to them in a court

Putting individual people through a trial that they actually committed an act of treason or terrorism at least gives them the rights afforded to them in a court, such as legal representation, the right to hear their charges, the right to appeal decisions, etc. (I also have issues with the actual application of the courts these days, with the pressure of guilty pleas and the like, but theoretically it is better than violating the rights of over 100k people due to being related to someone from Japan without any evidence that those individuals have committed any wrongdoing.)