The only person who did something wrong was Trump, supported by his deputy. They did not only verbally attack Ukraine (and, by doing so, Europe), Trump and Vance didn't even pretend to make a case for American interests, given Vance's complaint about Zelensky who thanked U.S. ammunition workers in Pennsylvania when he travelled there, because, in the new U.S. administration's view, this is seen as a support for the Democratic party.
The only positive thing is that the meeting was held in front of TV cameras so the world could witness the self-sabotage of the United States of America. A 'behind the scene' treachery would supposedly be much more harmful to Ukraine. The picture becomes more complete if we look that earlier this week, the U.S. had already voted at the United Nations against Ukraine, siding with Russia and China.
But now, the truth is out: The two men now holding the highest office in the White House are ready to sell the U.S. and its allies to the worst dictators on the globe, as Trump literally admires bad persons as he has been saying over and again. This is a signal the world has finally received. In Ukraine and Europe, but also in Taiwan, and the rest of the Asia-Pacific region, in Africa, in Latin America. It's a tough issue for Ukraine and the democratic world that must now reorganize.
But the toughest long-term challenge is already out for the U.S. Its allies' lost trust won't recover, and the world's dictators will pursue their own goals (maybe even more than ever). The United States are alone in a connected, globalized world. And this means that, with or without Trump at the helm, it'll become increasingly difficult to make America great again.
I am convinced that this is not what the majority of U.S. people want for their country.
[Edit typo.]