There is no critical need for Ukraine's minerals in the US.

The plan was simple. 

1: Zelenskyy agrees to an industrial, mutually beneficial partnership that puts US non military interests in Ukraine. 

2: Trump calls Putin and asks for a cease fire.

Anything after that is negotiable.  Z came in playing the role of a badass Eurotrash thug and torpedoed it on global TV. 

Trump is right, he is a man who doesn't want peace.