By the same illogic, the war crimes of WW2 should not have resulted in guilty verdicts since the wars were over and the Allies had already won.
A big part of our failing “democracy” is the decline of the judiciary.
That's because they have been teaching "case law" instead of Constitutional law in the law schools since the 60s—veering towards outcomes instead of bedrock principles. And doing affirmative action with admissions. And now they will be teaching "diversity, equity and inclusion" law, completing the triumph of outcomes over principles. Hence, America is toast.