This line of reasoning would include Hillary as well. By staying in the race she’s tearing the country apart. Look, both Hillary and Donald won their party’s nominations — they have a duty to continue their campaigns until the end. 100% of elections in the United States resulted in one candidate winning and another losing — the losers owe a duty to their parties to keep trying to win until the end. Who knows, perhaps Hillary will sucumb to her illnesses and be unable to serve.