It's perhaps not so much how your amygdala is tuned that makes you politically extreme, but that your intrinsic nervousness makes you more responsive to things that might seem to threaten your particular social world. Education probably plays an important role in dampening that response by allowing the brain's frontal lobes (where much of the brain's conscious work goes on) to counteract the emotional responses with a more considered view, so explaining why education is invariably the friend of liberal politics.
My real mom died when I was born—hemorrhaged to death while giving birth to me, which has never been one of my favorite memories—and Dad married Denise before I’d turned a year. Without even asking my opinion on the matter. Denise and I never really clicked.