It looks like the Trump Administration is working hard to be the biggest asshole at every international summit. I’m not saying there aren’t worse regimes in the world. But even they will generally sign on to lofty statement of principles about “equity” and letting poor people have health care or clean air. The Trump Administration would too in its first term. But now that outright corruption and racism is officially U.S. policy they’re even trying to block other countries from making those statements.
Since Trump is now boycotting the G20 summit over his racist hallucinations of “white genocide,” the countries that do go may just cut the U.S. out of the process. The only long-term effect of the Trump Admininistration’s efforts will be a dramatic loss of U.S. influence in future international agreements. That’s what being a huge asshole will end up getting you.