IQ tests intentionally omit any questions related to empathy, emotional intelligence and creativity, so it can favour people from the top of the pile and act as accurate perdictor of success in ruthless capitalist society. It implicitly promotes lack of those traits in individuals and explicitly promotes the definition of intelligence that's unrelated to them. While you don't get lower scores if you're highly creative or empathetic person, so it's not directly a detrimental for society and can be a useful metric for some cases like specific jobs, it's image as sole measure of intelect is manufactured to promote "specific kind of people", to which group many republican businessmen would belong.
I'm not disagreeing with what you said, just thought I'd expand on that.
Give me any reasonable source other than your ass that shows registered voters left of center stayed home instead of voting. I'd wager much more undecided centrists did, because they didn't care which of the two right wing parties won. It would be an asspull as well, but mine at least has some reason behind it, while yours just blames the left for being bad and stupid and stinky.