How?
And that opposed to trickle down economics? That concentrates the wealth and power at the top, and puts the worker at a severe disadvantage- bordering on enslavement. See how illegal immigrants are treated in many industries.
Besides, in the context of history, as a country, the US has been pushing our identity and morals all over the world. How is that ok but the opposite is not? Especially when "detente" was the way of the world, we did a great job of taking out suspected communists, and implanting horrible dictators. See much of South America.
The whole "libertarian" way of living as you want is a great daydream, as it ignores the impact you have on your neighbors. Unless you are ok with someone punching you in the face, literally and figuratively.
Looking back, it's interesting that the era you want to go back to is having massive tension between powers. To have detente, you need tension in the first place.