I literally said if he takes Donbas and Crimea, yes that's worth it. You've failed to present any evidence he could take anything else except Transnistria which has already been defacto independent and considered under Russian occupation since 2022.
Russia is halfway to dismantling NATO or at least it making itself irrelevant by refusing to commit, now that an isolationist government is going to be in the US. Considering the growing popularity of the right wing pro-Russian parties in France and Germany, it may not take that long before NATO becomes a non-issue for Russia.
Sure, not all of Eastern Europe is at risk.
So... is that okay then in your mind? As long as Putin only takes some of Europe, that's acceptable?