If you vote for Trump to spite Hillary then you were never a supporter of Bernie's vision. Also, you apparently have no respect for democracy.
I've only ever been concerned with voting groups and still have that position. There's only one group Trump wins with any decent margin and it's white men without a college degree. This is why Clinton's vp is Kaine. Almost every other group he will lose by huge margins.
But you can ignore all of the divisions of education, race, etc... just look at gender. In 2012 I think women were 53% of voters. Obama won women by double digits. What the hell do you think is gonna happen this year? If Trump could win all men by a larger margin then he'd have a chance. But he'll struggle to match her margin with just white men without a degree, much less other male groups.
My prediction hasn't changed. Clinton will win 350+ electoral votes, maybe even break 400 depending on how well Trump gets his shit together (if at all). She will have 10+ million more votes.