Has nothing to do with it. I wrote my comment to create an equally absurd and meaningless point to illustrate how silly that "the war would end if Russia would leave" mantra is.
Like my comment, it's technically true and completely not worth discussing, because it will never happen.
By that logic, the world should have just given Hitler everything he wanted too, right, because Germany leaving would never happen. The Soviet Union left Afghanistan when the costs got too high. So did the US. Under what basis do you aver that Putin leaving Ukraine can never happen?
There is a legitimate debate as to what cost is worth paying, if any (as well as what cost comes from not doing anything - ask the Baltics), but to present the situation as fait accompli?