I don't think that's accurate. NATO and Biden could have done a lot more in the diplomacy negotiations that could have made a difference. Instead they basically said FU and called his bluff. And he wasn't bluffing.
Heck no. But if a cop is there watching this scenario unfold and does nothing to stop or prevent it from happening which emboldens the attacker, is the cop blameless?
Well it's a role we have historically taken and we pretend to the world that we are. But when shtf we sometimes do what we say and other times we renege on that implied contract and cut and run.