This is so absolutely right. Trump is undoing all of the intentional institutions that the USA created. He is literally dismantling nearly one hundred years of consistent effort across every administration to serve US interests by structuring a global system based on a reliable and coherent US foreign policy. It just so happens that this is also the same global system that was used to isolate Russia with sanctions and defense agreements. The amount that Russia gains here is hard to fathom. The US just permanently lost world power status. No one will ever trust the US to be the world leader again. This will be a fundamental and permanent shift.