"We will move to end all American support from the ICC, sanction your employees and associate..."
What USian support? They aren't a member and this is the same ICC that the United States has an actual law in place to invade The Hague should a USian ever be charged.
Why should what a non-signatory objectively hostile nation says carry any weight whatsoever.
Bonus: More sanctions. We are going to reach a point where the countries and people sanctioned by the US is larger than those not. It will actually be an economic boon to be sanctioned.