A lot like a Hatfield/McCoy divided family, a blue/gray divided family isn't meant to be functional. As much as the more pretentious family members tend to hide the lack of civility for an everything's fine facade, a blue/gray divided family doesn't work out in the long run.
There was nobody left in the Hatfield/McCoy divided family after they all decided they would be the last family member standing, or every otherfamily member was coming with them, which might have been for the best, as nobody would miss some of them. The blue/gray divided family next door snuck in surplus ammunition.
The family member you feel like you're on a reality show with, you never really had a good time when they're around, you just feel like for some unknown reason you're supposed to be nice to them even though there is no real bond there.