What else could Ukraine and the West have done to avert this war?
Seems like he is suggesting Ukraine pump some ability points into the diplomacy skill tree and exhaust everything first like it's a game. He is utterly missing the point that diplomacy would only work in Russia's favor. They are highly unlikely to give up anything. They want resources, people. They want control of pipelines and sea exports. They are a weak economy and looking to enhance that and use those resources as world control.
But sure..
Let's pretend that Russia isn't a bully. Doesn't waste lives like they are nothing.. let's pretend pootin doesn't dispose of political opponents and critics when it suits him.