Ukraine can not win this war because the kill ratio in this war is in its disfavor. Mearheimer estimates that two Ukrainians die for one Russian soldier but says that many of his friends think that the ratio is more like 3:1 or 4:1.
All the information from Ukraine is quite the opposite. In fact they tend not to release information but what they have released is that overall the ration is 1: 5 or so, with Bakhmut being considerably worse.
Western leaders have varied in their assessments but none have said a 1:1 ratio. In fact, it's simply not going to be 1:1 because Ukrainian medical care is far better.
The Ukraine also has a much smaller population than Russia. The current ratio is about 5 Russians for 1 Ukrainian. With a much smaller population and much higher casualties the Ukraine will run out of able bodies way before Russia does.
Ukraine is fighting for its life. It's not like all Russian males are going to be sent to Ukraine.
Mearsheimer expects that Russia, which already has incorporated four Ukrainian oblast plus Crimea, will take another four oblast from Ukraine.
Riiiiight.
The problem of hyper-nationalism (fascism) on the Ukrainian side also makes peace impossible.
Ok, this is bullshit. 1) its their land. it's not hypernationalism, it's defending their own land. Which, btw, Russsia gave guarentees to do too. 2) fascism? By all measures, Russia is far more fascist than Ukraine. Seen the pictures of little 5 year olds in military uniform and pre-teens being taught how to handle military guns? 3) If Ukraine settles now for peace, Russia will come back.