Putin made it 100% clear he does not want Diplomacy. He wants a victory by conquest. He wants war. He doesn't care how far he has to take things to get it. Anyone who listened to his bizarre rant on Ukrainian "history" can see this.
What the hell is NATO waiting for? "Okay, but if you kill another thousand civilians, we're REALLY going to start thinking about those sanctions!" seems like the defacto mode of thinking right now.
2022 shaping up to be a disaster.