Ah, the conscience voters are at it again. Only this time they will hand victory to a demonrat.
Remember a 1980 "Republican" fellow named John Anderson? He ran because Reagan was "too extreme," etc.
Later in his career, he was all over the place, (He endorsed Ralph Nader in 2000 and helped found the Justice Party in 2012.)
For the most part, 3rd party kooks are just 3rd party kooks. A certain type of voter is attracted to those situations.
Big fish - small pond comes to mind. On an internet forum (like Facebook for example) 100 people can be for major candidate X and another 100 for Y, but much of the noise, chatter and ATTENTION is open for candidates C and D.
https://en.wikipedia.org/wiki/John_B._Anderson