Trump does not want peace in Ukraine. He claims he wants peace, because it sounds like something you cannot be against.
But Trump has been "for peace" for more than a year, and at no point has he presented any tangible peace plan, because it does not exist.
What he sees is Ukraine depending on the US, and he wants to profit from that dependency. And if that puts Ukraine's future in peril it does not matter, because in his twisted mind, Ukraine is just a Biden ally and therefore a Trump enemy.