I have considered why these countries want to join. It's for much the same reason inner city kids want to join gangs - a mix of a desire for protection and a desire to be the threat for once.
>What is happening in Ukraine and what happened in Georgia and Chechnia is EXACTLY the reason why these countries want join NATO
Georgia got whacked for the same reason Ukraine did - because it tried to join our gang. Why were we pouring money into Georgia to sway it towards that point? Well, coz it's a standard empire building tactic to stir shit up on ethnic faultlines along the borders of your opponents. Just ask the British.
I fully understand WHY kids join inner city gangs but we generally try to advise them against it for a reason. Those reasons apply here 100% - it can give you protection, but it can also get you chewed up and spat out as cannon fodder in a larger turf war.