The problem with the 3rd partiers is that they cannot decide on a single candidate to rally around. We have people here voting for Johnson, McMullin, Castle, writing in Batman and Mickey Mouse, and God knows who else. It's a clown show (and Trump himself is the head clown no doubt).
But the effect is the same. When you hear liberals talk among themselves, they're more strategic. They'll vote 3rd parties but only if not in a swing state, etc. etc.
Conservatives are just extremely stupid people. That's the only conclusion I can draw from this?