You can impossibly be serious.
Trump’s behavior suggests an unstable and ignorant person. Hillary is neither.
washingtonpost.com/news/the-fix/wp/2016/06/30/heres-the-growing-list-of-big-name-republicans-supporting-hillary-clinton/
From the link, big-name Republicans who support Clinton:
Brent Scowcroft, chairman of the President’s Intelligence Advisory Board and adviser to three previous GOP presidents — “The presidency requires the judgment and knowledge to make tough calls under pressure… [Clinton] has the wisdom and experience to lead our country at this critical time.”
Max Boot, senior fellow at the Council on Foreign Relations and adviser to GOP presidential candidates — “I’m literally losing sleep over Donald Trump. She would be vastly preferable to Trump.”
Dan Akerson, former chairman and chief executive of General Motors — “Serving as the leader of the free world requires effective leadership, sound judgment, a steady hand and, most importantly, the temperament to deal with crises large and small. Donald Trump lacks each of these characteristics.”
Mark Salter, former top adviser to John McCain — “Whatever Hillary Clinton’s faults, she’s not ignorant or hateful or a nut. She acts like an adult and understands the responsibilities of an American president. That might not be a ringing endorsement. But in 2016, the year of Trump’s s campaign, it’s more than enough.”