@xi0
My question to you would be why it should be criticized. The point is not that the US or EU do not have interests in Ukraine. They do and that is not anything inherently bad, every country acts out of self interest.
But eastern europe wants to be in EU and Nato (at least most of it). And the reason for that is that there is russian aggression, no matter whether the country wants to be in these entities or not.
There was talk of Ukraine joining nato 2005, but it was denied. Back then, Russia had no problem with it.
The russian aggression against ukraine predated the ukraine crisis, even before it, when janukovich was rather putin friendly, russia would always threaten it via energy and economy when it didnt obey.
That was one reason why Ukraine even drifted towards the EU.
The russian military aggression, annexing parts of it, started when it was clear that ukraine decided for EU instead of eurasion union. That had nothing to do with nato, at that point in time, most ukrainians were against joining nato and had positive images of russia. That did not help Ukraine at all.
Joining the EU is hardly a hostile act against russia. Finland is in it, so are many states bordering to russia, and these states never acted aggressively against russia.
Only after Russia kept undermining ukrainian sovereignity, Ukraine started to seriously want to join Nato. And why would they not be allowed to do that? Do you honestly think Russia would not snatch them if they wouldn't want to join Nato? I find that naive.
The west now has to impose serious sanctions even at its own expense to protect Ukraine and keep russia from trying the same thing with other states or using it as a threat against even eastern nato/EU states. And it should push for nato and eu membership of georgia and moldova.