You have to understand that that is how some people feel about Hillary. That losing their own vote forever, for their entire gender, would be worth it to them to keep her out of office.
I think the problem is that's not true. From what I've read, people don't support a candidate because they agree or disagree with the opposition on real-terms. They support because of "fake terms."
I consider these fake terms to be one I hear a lot from Trump supporters: "Hillary Clinton wants to take our guns away."
> women (a small number, mind you) were tweeting they'd gladly give up their right to vote if it got Trump elected.
There are plenty of women that think women shouldn't vote, regardless of Trump! There are men who think men shouldn't vote, etc.. etc.. fortunately, the internet gives them a platform: unfortunately, sometimes these groups aren't keen on reason.
Also, there are varying degrees of agree-ability. I do not agree with many of Hillary's policies, but there aren't any that I would take a firm stance against. Most of Donald's policies are different: I don't agree with them, and I believe it'd be awful if they were to actually happen.