No, it’s Putin chasing hydrocarbon fields and his desire to reunite the Soviet Union. He was already doing it piecemeal a decade ago, that was already the trajectory and this was the final push. Talk about NATO and the west was just window dressing.
It’s weird how so many people are so quick to forget his forays into Georgia, Donbas, Crimea and indeed Syria and think the current situation is independent of those actions.
And how desperate people can be to blame the west. For once, ‘the west’ aren’t to to blame beyond their own disinterest in those prior actions and intervention in any meaningful manner until this point.