I mean, they turned it that way.
The Americans' intentional and active undermining of well-established norms, that were established for good reason, did turn so much upside down.
The rest of the world is having to clean up the mess.
I'd say it's a little different now as previously the US at least engaged with other countries to shift global norms, even if the shifts might have been... substantial.
Today, though, it's a complete disregard for the norms, a childish rebellion, not engagement.
At least before there was a second set of eyes on a proposal, a moderating factor even if we would have liked it to be even more moderated. Now that's gone.