I wouldn't sit out this election even if the GOP ran Donald Duck for president. The Duck would make a better president than Hillary Clinton, and if all the purists who smugly sat home in 2008 had voted, we wouldn't have President Jughead, Jugheadcare, gay marriage, the threat to the 2nd Amendment, the torturing of Freedom of Religion, the Middle East erupting, the inner cities erupting, college campuses being held hostage by the precious little snowflakes who are offended by the free speech rights of others, etc., etc., etc.
Vote. Even if you have to hold your nose to do it. Just. Go. Vote.