Good post mate. I'm not from the US but even I got bailed up by friends and told I needed to choose between Hillary or Trump. When they didn't like my answer they were outraged.
But in the US voting is not compulsory, plus I probably would have voted for Gary Johnson anyway, but when you're dealing with binary thinkers it just doesn't fit the narrative. Most people over here in Australia didn't even know there was a 3rd (and 4th) choice.
I hear ya, it's like people have nothing better to do than turn it into some sort of "sporting event". Even crazier that you're not even from the U.S., and you were still getting slack for it! Gotta laugh at the absolute hypocrisy of it all... 😂
As for the "binary thinkers", in that regard I often like to counter with the classic line from Star Wars...
"only a Sith deals in absolutes"