The most advanced Democratic system is currently on trial in de Haag for supporting genocide

You mean in post WW2 Germany that had more nazis in government than during the war?

A straw man argument is one where you are misrepresenting an opposing position, so I don't think the term quite fits here. I'm not trying to claim it's never done anything good, but even the arguably good things have always been more about calculated self interest than any real concern for human rights or welfare:

https://en.wikipedia.org/wiki/Marshall_Plan

The purpose of the Marshall Plan was to aid in the economic recovery of nations after World War II and secure US geopolitical influence over Western Europe.

The only major powers whose infrastructure had not been significantly harmed in World War II were the United States and Canada.[30][31] They were much more prosperous than before the war, but exports were a small factor in their economy. Much of the Marshall Plan aid would be used by the Europeans to buy manufactured goods and raw materials from the United States and Canada.

WW2 left the country in a position of relative economic power, and in the following decades it used its greater influence the same way it had before (eg. the wars in Hawaii, the Philippines, Cuba etc.), to advance the cause of global capitalist exploitation and brutally suppressing even democratic opposition to it.

To me the main change here doesn't seem like the US becoming substantially more evil than the already substantial evils of the past, just getting worse at acting coherently in its own interests, acting against its allies instead of just geopolitically marginalized victims.

BS, they profited directly from it as it was done by US companies and partially in loans.
Not as important as the "upholders of democracy" at the same time making Europe their vassals OC.
Pure self interest.

Kind of an oversimplified view I think. Russia did and still is experiencing shortages and economic impacts from US sanctions particularly for tech related things, but a lot of the resource gaps are just being filled by other countries also under sanctions.

So it forms kind of a split economy, if you subtract all the shell companies and obfuscation techniques used to circumvent sanctions anyway 🤷‍♂️

And they only chose to 'fight' against the nazis when they were sure they had lost (Stalingrad 1943).
Royally late and with the only purpose of getting a part of Europe under their control before the Soviets got it all and killed their nazi friends.