I've heard before that a key hallmark of liberalism throughout history is exceptions to its own tenants while continuing to claim the moral high ground.

Seems to fit here quite nicely.

Yes this is how sovereignty is maintained. This duality is why other members of the international community can refuse to follow ICC declarations one year and support the other years.

The United States doesn't release that control willingly. Others would have to make them if they feel it's that important.

Until someone can take that authority, they retain it.