The only vote I would ever cast for Hillary is ‘guilty as charged’.
Trump is a moron and an asshole, among many other things. (Racist, tasteless, tactless, self-centered, hypocritical, hateful, stupid….) The only vote I would ever cast for him would be to vote him off the island.
I voted for Jill Stein in 2012. The world did not end.
Strong showings by candidates who are not republicans or democrats can help instigate change, even if the candidate loses that particular election. It can be easier to get on ballots in the future, public funds can be freed up, private interests may feel better about donating money, good candidates could be encouraged to run in future elections, etc.
The President is only one person. 30 Senators and 100 Representatives working together could arguably effect more change, for example. (Ideally non Republicrat ones)
I have been on the Bernie train since the day he started running, and have been a fan of his for years, but probably more a fan of most of his policy positions, and his honesty and conviction. Out of the 320 million people in this country I would bet there are at least a few thousand who would be very similar to Bernie in their beliefs, principles, ability, and actions. Lets get them into state, local, and national offices and see what happens.
I decided in 2012 to never again vote for a republican or a democrat running for national office (President and Congress) and voted for several ‘third’ party candidates for state and local offices in 2012 and 2014. If 20 or 30 million more people did this, it would certainly shake things up a bit. Imagine Trump / Hillary winning with only 36% of the popular vote. This is not a playoff football game, one loss does not mean everyone has to go home sad.