No matter who "wins", this war will cause a global famine which will ensure more chaos on a massive scale. This is just the opening salvo of the war to come.
If the entire western world turns on Putin he still has allies who will stick by him who could make life very difficult for the west. And, if push comes to shove and he's backed into a corner, he still retains the nuclear option.
"The time for war has not yet come, but it will come and that soon, and when it does come, my advice is to draw the sword and throw away the scabbard." Gen. T.J. Jackson, March 1861
