Either Zelensky is delusional or outright stupid. He rejected the best deal he could get for in 2025. If Ukraine don't want US, US should just leave. Let the Europeans play the war games in Europe. US can't just destroy its economy to feed warmongers in Europe.
Calling what Ukraine got offered as best deal is delusional. What they got? Request to officially recognize Crimea as part of Russia, froze front at current lines - leaving regions that were occupied until now for Russia and getting zero security guarantees. USA did nothing, Ukraine could get such deal without help of USA because basically it's everything what Russia requested. For Russia, yeah, it's best deal that they could get.