I mean, the current administration has repeatedly threatened to invade militarily two of its allies. Also, it has repeatedly threatened to not honor military agreements with most others, and both the current president and vice-president have insulted the leaders of several allied countries to their face.

Oh, and if that weren't sufficient, the current admin has unilaterally broken all trade treaties (alongside most intellectual property treaties) it held with its commercial partners.

The EU is slow at it, but it's no accident that everybody is doing their best to move away from US tech and military dependencies.