I think I Know who birdman is in real life (not certain, but fairly sure), and he is extremely down to earth, thoughtful, and pretty much the opposite of someone who would shill for such a terrible candidate as Hillary. He pretty much summed it up. He doesn't have an option that is worth voting for, but Hillary is the closest thing he has, so he will reluctantly pull the lever. For someone focused on the environment/climate change as a primary vote driver, this is a very understandable position. Hillary is pretty far right for a democrat when it comes to climate, and Trump is simply unacceptable. Johnson/Weld are also very non-interventionist as would be assumed with a libertarian ticket. I can imagine that would be frustrating for someone like birdman.