If you think Clinton and Trump are basically the same, I urge you: Please, PLEASE, read this. It’s an extensive summary documenting large numbers of ways in which Trump is a literal fascist. That’s not hyperbole.
And if you think Trump could never be elected: People said he’d never be nominated, either. This is a close election — much, much closer than it should be, given that one of the candidates is a literal fascist.
If you have problems with Clinton — say so. I would urge you to take some time and fact-check your opinions about her: there’s been a decades-long right-wing smear campaign against her, much of which is being repeated by people on the left. I would also urge you to look at some of the ways many attacks on her, including attacks from the left, are sexist. If you’ve checked the negative things you think about her and they turn out to be true and fair and not a sexist-double-standard, say so.
But if you think there’s no difference between the candidates, that’s just flatly mistaken. Clinton is a moderate-to-liberal Democrat with some troubling things in her history. Trump is a literal fascist.