First of all, the Brazilian leader is a nutjob
Biden administration never wanted Ukraine to win. They tried to stalemate the war, thinking Putin would get tired of the losses and start negotiating.
Putin doesn't care about losses, and still will not negotiate in good faith.
Putin is still demanding Ukraines surrender.
Putin will get his surrender, whether or not there are Ukrainians who are in position to surrender.
Putin is still demanding Ukraines surrender.
The war will last for another 10 years.
Increasingly, it will be fought with drones.