Here’s a real argument: Trump will not be taken seriously on the world stage. Britain had a vote to ban him from the country, other world leaders don’t like him. Putin will step all over Trump, because they are both bullies, but Putin is the bully with nearly 20 years experience being a leader of a large, influential nation. HRC has worked with world leaders and is much more respected globally.
Trump is rash and emotional, likely to make fast decisions at the expense of thought. He has proved this time and again, even before the election season. HRC has incredible self control and even temper, evidenced by her hearing on Benghazi. Would you rather have a tantrum prone president or one that can keep her cool and rationality?