I kind of agree with you but the whole point of the eurozone and eu was to elevate the interests held in common across the region to avoid balkanization and competition between constituent states.
Once the us is aligned against that construction the cheese stands alone and European crack up is inevitable.
Of course American anti euro aktion has overwhelmingly been in word instead of deed, despite your handful of good examples.
It’s very likely that European politicians will follow their unique european polities and place the interests of their individual nations over the interests of their region.