Okay first of all? Remember that as much as you love them, in the end this is about then. Take care of you first, Klaus and the family second. You have a tendency to put the people you love's needs before your own and that can't happen.
Secondly, they can survive this. They've survived worse. But they need to talk and they need to actually listen. That family has more strong, dominant personalities than any one group should and that's when they clash. They'll make it through this. Have sole faith.