I think I understand why the Republican establishment (and the D's) are so obsessed and obviously terrified of this small mother of five from the frontier. She is a combination of all of their very worst nightmares, a genuinely charismatic, purely working class achiever who speaks fluent "American" and conveys a message that is authentically populist. That makes her a clear threat to a system of thought and governing that both parties have milked and wish to continue milking for all the power and billions of dollars their evil little hearts desire.
I was thinking this same thing but couldn't think how to put it.
Thanks! You said it just right!