By far the single most important job of a US president is to take responsibility for decisions on empire management that would have been made regardless of who is in office, whether Democrat or Republican or tuna fish sandwich. Their job is to provide the illusion of democracy, letting you feel as though you “voted out” the perceived perpetrators of various misdeeds while leaving the actual power structure responsible for those misdeeds fully intact.
It’s like rectifying a corporation’s misdeeds by firing the secretary. They just rotate in a new secretary every few years.
Nobody is born supporting nonstop military expansionism and regime change interventionism. It takes a lot of education to make us this stupid.