Well they were Democrats, sometimes FDR Democrats. And one is indoctrinated into politics maybe at a superficial level. But one isn't indoctrinated into politics at a deep level. One is indoctrinated into values and worldview at a deep level, what a person should be, how life is etc.. That's the actual deep stuff parents and other significant adults indoctrinate. Plus that any political indoctrination gets heavily influenced by their surroundings.