I was working in Mississippi during 2016 election. I met many people who point blank told me they will not vote for Clinton, just because she is a woman (there are a million reasons not to vote for Clinton, her gender is not one of them). What should we call such people?

Do you mean democracy only works when all people vote for options that you think are sensible?

How did you deduce that from my comment? Just one day after Brexit, tons of people regretted voting to leave - lots of them admitted they didn't take the vote seriously, they thought others would vote to stay, so their vote wouldn't matter. A serious voter would have voted on the merits of staying or leaving the EU, not because they were angry at some politician or some other policy <-- This is what I meant when I said "Democracy only works if voters take it seriously", I don't know how you deduced that I want everyone to vote the way I want them to.