Zelenskyy's problem is that we now have a POTUS who is engaged in putting American interests first, and whose strategy isn't protracted stalemate. Trump's foreign policy is not an unending war that kills both Russian and Ukrainians, as was the case with Biden. That's bad for Zelenskyy, because it also means the unending supply of US dollars has dried up.
I've been around a while, but between DOGE and this war, I've never seen an entire party, the Dim party, fight so hard for things that are so transparently wasteful and / or corrupt.