I can agree with what you said to a certain extent.It's interesting to see how even "smart" people can be incredibly emotionally driven.
I mentioned the other day that a Democratic city council member went off on me online when I said that some Dems wouldn't vote for Bloomberg even going up against Trump. The guy who went off was actually a really smart guy. But he was SO emotional about the fact that I had a different position than him, all he could do was insult me, call me a moron, repeat himself while failing to address any of my arguments. He wasn't even reading my arguments correctly because anything I said he just assumed fit into some box he had already labeled me into. When he deleted the original conversation from his public page I thought he might have figured out that he had fukked up, but then he said even worse shyt in my PMs than he had said in public.
I went to college with all sorts of brilliant scientists, and the truth is even a lot of smart folk make many of their decisions emotionally, then figure out how to use their intellect to justify those decisions after the fact. Outside of a few very careful, fair-minded people (not even 1 in 5), I'd say that even smart people are only maybe 10% less wrong on important shyt than average people. The rest of the time they're just going off of groupthink or emotion and their intelligence ain't helping them at all except in how creatively they can justify the decisions that their emotions already made.
But when you say many people decide based on emotions, I know that's true but I still find that to be stupid.
Because emotions has nothing to do with whom me I support, and probably neither you.
So if you and me instinctively do it, then why not others?