I don't see why a woman of colour cannot bag 53% against a man of colour (orange). But maybe I have a more optimistic view of Americans in this way.
Obama, a black man, was able to win easily enough against two white men.
HRC, a white woman, would have landed that sort of number but for Comey.
But a white man in his 80s didn't look capable of it!!!
I think Trump's number doesn't move, not so much because of her, but because he is appealing to a whole bunch of Americans, particularly men. But he is loathed by slightly more Americans, particularly women. Dems just have to persuade their people to vote. It's all about the ground game.