Richard Grenell, Trump's new ambassador in Germany sent this tweet on his first day on the job: "As @realDonaldTrump said, US sanctions will target critical sectors of Iran’s economy. German companies doing business in Iran should wind down operations immediately."
This was not well received.... Obviously diplomacy is hard.
The rest of the world has no reason to trust America anymore, and as a result they know that it is in their best interest to do everything possible to ensure they no longer need America politically, economically or culturally. Strangely a lot of Trump supporters seem to consider this a win, as if taking your ball and going home is a "win" when the result is you sitting alone in your basement with a ball that is of no use to you anymore while all your former friends go play a different game without you. Looks like it's possible Europe and Asia will move on without the USA.