One side destroyed relationship with strongest allies for nothing while other side didn't.
The US has never had a single ally, maybe except Israel. Only vassals.
If you think this is the first administration to abuse and antagonize countries it usually works with, you have not been paying any attention to what has been happening for the last 250 years.
The US is singlehandedly responsible for the EU still not being more closely united, as it always had and used its de facto veto over anything.