Why have almost all European leaders come to grovel before an American President they clearly despise?
When you can defend your own continent without the sight of your governments prostrating themselves to such a man I'll take your claim more seriously. Europe has been asked for decades now to act more responsibly. Now you are being forced. Instead of blaming America let's see if you guys can cobble together a path forward with waning American guarantees without recreating the internecine strife that led to the American intervention in the first place.
Nothing I am seeing out of Europe gives confidence over the next decade. Hold your own governments accountable.