America has always had the option of working with its allies.
We chose not to. We chose to issue ultimatums instead.
It takes a special type of incompetence for the most powerful nation on earth to become isolated.

The extent of US isolation at the UN has been driven home by formal letters from 13 of the 15 security council members opposing Trump administration attempts to extend the economic embargo on Iran.
...
Diplomats at the UN said the depth of US isolation was in part a reflection of the abrasive style used by Pompeo, who accused Europeans of choosing to “side with the ayatollahs”, and the US ambassador to the UN, Kelly Craft, a political appointee.

“The Americans were actually being over the top in their ridiculousness,” one diplomat said.

“The underlying point here is that most countries on the security council basically agree with the US that Iran is not a nice country and it having nuclear weapons and more arms is not a good thing,” the diplomat said. “But the Americans misplayed their hand so often, so aggressively, that they isolated themselves from people not on policy, but on just being unpleasant.”

Can you even imagine just how big of a jerk you have to be to isolate yourself from the world, when you are the most powerful nation on earth, and your allies agree with you on policy, and yet they'll still vote against you because of the way you act?
You have to be a major-league asshole.
This is not the first time recently that we were isolated.

Meanwhile, 24 EU countries opposed US plans to impose new sanctions on Nord Stream-2. Only three refused to share the majority opinion, writes the German newspaper Die Welt, citing sources in European diplomatic circles.

It seems likely that Germany will finish the pipeline, and that America will sanction them.
Where it gets interesting is how the European Union will respond.

Exhaust all possible diplomatic options including those codified in Article 96 of the UN Charter, in which the General Assembly or the Security Council may request the International Court of Justice (ICJ) to give an advisory opinion on any legal question. When the ICJ declares the US to be in violation of international law America would be branded an outlaw. Certainly a loss of face for the Trump administration, assuming such embarrassments have any register with the White House occupant.

A loss of face implies a sense of shame. I don't think that this exists in Washington.