I understand where you're coming from Cookavich but must say I disagree with an awful lot of what you say here. The whole point of any bloc is a group of alliances who trust each other stand together for security. Sure almost all have the ability for offence as well but it's rarely the primary goal.
To lump a whole bloc together because some members think one way is crazy. As Hoo said, RoK and NSO don't get along, that doesn't mean FB is out to get RoK. Yes some members of SF dont like Polars and vica versa but to turn than into anything more is crazy IMO.
To address the OP I don't wish to see any bloc rolled as without exception they all have some members I really like. I do how ever think my world would get a whole lot simpler if some blocs split up!