Is it because Hillary Clinton was just not made of the right stuff. As in, she didn't want it enough or she was complacent during her campaign?
Or is something about the American psyche, wherein heads of state require an air of machismo to connect with the electorate?
The UK is suffering it's second right wing female prime minister at the moment (nothing wrong with being female, just why did she have to be a smelly tory).
Elizabeth II defeated Spain and Victoria defeated France to put the UK at the center of world affairs for the following millennia.
Perhaps a woman's touch would be what is needed to unite a currently somewhat polarised nation?
Would you rule out there ever being a women in charge of the US?