I don’t know if it would be helpful. It would surely weaken Ukrain and I don’t know if Crimea could ‘survive’ on its own (economically speaking). It would probably end up being a russian annex, which would strengthen Russia’s grip on all of the Eastern Europe countries (not necessarily willing to ‘cooperate). Plus let’s be honest, who thinks Putin (and to a lessre extent, Yanukovych but I think the poor fool’s just Putin’s pawn in all this) is going to end it there amicably if he obtains Crimea ? Don’t want to be the first one getting a Godwin point (but for once I feel like the comparaison seems accurate), but Hitler also ‘just wanted’ Danzig, and see where that led us. No, I think he wants to restore the former ‘russian empire’ or something like that.
But anyway, that’s just my opinion, I am not a politician or an economist, so what do I know ? I just hope for Ukrain that the situation will get sorted quick and without anymore bloodbath.