Amakatura Murou wrote:True, America's foreign patterns do prove our inherent desire to invade anyways. I believe we would have simply found other ways to support our actions; Truman's containment policy would have still been relevant, just not as pitied as when South Korea was invaded.
I don't think that does "prove our inherent desire to invade." That is, if by "America" you mean the people who live in the geographical area that is territory of "The United States." Since the US is in no meaningful sense democratic when you use the term "America" or the "US" I take it that you are referring to the decision makers and elites.
A brief glance over history should be enough to tell you what the decision makers and elites are interested in, and so what they would probably do.
In the concrete case of Korea, perhaps a parallel with Nicaragua works, where the US (read: US elites) used a proxy army to bring the country to heel—in violation of international law.