Well I sort of agree with you, though the economists version of the argument is more persuasive. They focus on the marginal value of ANY other use of your time in comparison to voting, but they get to ignore anything that is too hard to count (such as time, which is truly more important than money). I've always voted as a civic duty, but I would argue that there is a net benefit to society when as many people as possible are encouraged to do their civic duties, even if they are being silly.
As regards Hillary being evil, I basically don't buy it, and I think that her detractors can be divided into three basic camps. People who hate her for pragmatic partisan reasons, people who hate her for misogynistic reasons, and people whose opinions have been colored and influenced by decades of demonization from the first two groups. I basically think it's crazy to hate her for being less than perfect, because no one is, so I'm not sure if that's a legitimate fourth group.
My two counts against her are that she's a lawyer and part of a family dynasty, but they are weak counts. The American political system is basically rigged for lawyers ("government of the corporations, by the lawyers, for the richest 0.1%") and it's a stretch to say Bill Clinton was the founder of a real dynasty. Anyway, Hillary is only related by marriage. I actually think she's more honest and principled than the average lawyer, but she has received FAR more scrutiny than average and FAR more bad publicity than average. Ergo, her minor molehill mistakes have been painted as mountains.
I also think she's suffered a lot of scapegoating. The Secretary of State thing is a perfect example. She inherited a gawdawfui mess that Cheney had created, and it probably would have been impossible to fix even if the same politicians who created the mess weren't doing everything possible to prevent her and President Obama from succeeding in ANYTHING. There used to be a time when “partisan politics [must stop] at the water's edge", but obviously not now. At this point I wouldn't be surprised if Trump asked Putin to hack America's voting machines.
Now there definitely have been a couple of elections where my primary motivation was voting against someone, but I can't think of a Democratic presidential candidate who rose to the level of EVIL. Less than the best? Well, I've already commented that none of us is perfect and that I would have preferred Bernie as the candidate this year...