The US does not control the UN.
The US is just one of the five, the UK, France, Russia, and China are the others.
Why do you think no UN action was taken against Russia for annexing Crimea and invading parts of Ukraine in 2014? Or against China for its treatment of the Uyghurs?
None of this means the US ‘controls’ the UN though, any more than the other four veto powers do.
See also: https://en.m.wikipedia.org/wiki/United_Nations_Security_Coun...
On September 16, 2004 Secretary-General of the United Nations Kofi Annan, speaking on the invasion, said, "I have indicated it was not in conformity with the UN Charter. From our point of view, from the charter point of view, it was illegal."
Why apply double standards here? There's no good vs. evil. The world is more complex than that.
But I lived under both and, while there are no angels, I know which one is evil and which one is (flawed) good. Only one had to keep their people from fleeing their empire of misery with walls and guns.
Though I admit they are rather good at pretending to be professional, except their ads.