To recap, it seems your entire argument is this;
The US had to place itself as a controlling state to protect form the USSR. According to you, its only objective was to defend from Soviet aggression.
if this were true, US action after the Cold War, and US action independent of the Cold War should show the US is a peaceful, democratic, liberal country should it not? So lets analyze AFTER the Cold War to confirm this;
Lets look at the Middle East. Lets look at South East Asia. Lets look at South America. Lets look at the Grand Area fifty years after it was planned for US supremacy.
Lets look at the latest coups after the Cold War and US support for UNDEMOCRATIC, ILLIBERAL, AUTHORITARIAN regimes in these areas, and lets look at American SUPPRESSION of democracy.
The Cold War ended in 91, with the USSR opening itself to the world, and being met with the realization it was militarily and economically destroyed. With this knowledge the US had no reason to maintain its superpower hegemony - yet it did!
Today, whilst it claims to support 'freedom and democracy' in the middle east, it still financially and militarily supports the authoritarian dictatorship in Egypt and the undemocratic religio-political authoritarian regime of the House of Saud in Saudi Arabia, whilst giving arms to the military regime in Pakistan. In the last decade alone it has supported military uprisings and authoritarian groups in Venezuela, Honduras and Haiti.
Not only this but the US has retained the upkeep of its hundreds of thousands of troops stationed around the world and the near 800 military facilities it owns across international land.
This are not the actions of some peaceful, capitalist democracy that seeks nothing but self preservation. These are the actions of an imperial hegemon that seeks entirely to maintain its own power.