2 different kinds of Catholics - 3 different kinds of Orthodox! Not very culturaly united from my point of view. Ukraine has too many fault lines to be used the way Russia and the West are using it as a football.
If you'll check the yellow pages of any american town, you'll see that we have many more religious sects than that. By some of the standards being given for Ukrainian legitimacy, or lack thereof, we shouldn't be a country at all.