The whole world knows that Ukraine cannot defeat Russia...

The whole world knows that Ukraine cannot defeat Russia militarily, so what some anonymous posters are saying, is as you said it, funny. Russia will get to the official borders of Donetsk. What happens after that is anyone's guess. When will Z accept the reality is another matter. Defending a country is one thing, but being slaughtered day in, day out, and losing territory on a daily basis without means to retake it, is a crime.