I imagine Mr. Iwasa slapping his forehead after seeing the responses to his articulate, thoughtful, and sensitive essay. 
Some commentators have pigeonholed him as a product of the plantation system, employing immigrant Japanese who then migrated into government bureaucrats, kept their heads down as salarymen, and straight-armed anyone on the other side of the bureaucracy. This narrative forgets the sacrifice of labor reformers of all races in changing their slavish working conditions of the plantations.
Others pointed out the fraudulent bias of the DNC that either could either be politely ignored (enryo) or follow the inspiration of the social reformers of the past - agitate for change. 
There is fundamental, systematic, social change needed in this country. Without it, there will be an increasing rise of violence both domestically and with the present militaristic foreign policy. The question is there an emoji that can express this?
Is it a sociable thumbs down or a revolting finger?