What alternative do these other "partners" have? The Ukraine war has exposed how badly atrophied all their military might has become and lets be honest, post Ukraine, its clear that is the most important thing.
The EU still isn't meeting their minimum NATO commitments despite how far behind they are. It would take a massive amount of pain that the EU populations would have to bear in order to turn this around. I suspect all of a sudden EU population will become like the US population caring only about their own short term self interests more than what is "morally right". So the partnerships with the US will stay until the EU is willing to make that painful sacrifice to build out an alternative to the US military.