Yes, it is a complex inter-twining of crazyness.. I believe it started with GA..
he seems to have decided early on to act like an emotional cripple.. refusing to accept any responsiblity for his family, not holding down a decent job to keep up his end of the bills, possibly having affairs or gambling or messing about with shady business dealings..in general acting like a teenager instead of like a grown, married man.
CA responding, not by booting him out the door and forcing him to stand on his own 2 feet, but by taking over the entire load of financial responsibility...while she was at it, she began taking over all responsibility for everyone else's behavior, thoughts and feelings.. smothering KC in a literal sense (KC got even with her for that, years later, by physically smothering little Caylee).. I imagine LA went through the same sort of treatment but made his escape from the family zoo, it seems he is the least damaged of the bunch.
Meanwhile though KC takes on dads irresponsible habits.. "it worked for dad, it will work for me!! I won't grow up and become an adult and hold a job and look after my daughter..just like dad didn't grow up and get a real job and look after HIS daughter.. I will just let mom carry the load, and pretend to work, do as little as possible, and get by on shady dealings or whatever I can do without actually working or getting out on my own"
Mom responded by working harder.. and by trying to keep these free loaders in line by taking over their right to an independant existence.. their right to their own thoughts feelings and concerns were lost when they refused to do the adult thing of supporting themselves.. in effect CA said "Okay, I will support you, and I will keep a roof over our heads and food on the table, but in exchange, you are going to give up your right to an independant, self respecting existence apart from me!"
Any one of the three could have broken up the whole game, by refusing to play their role any longer.. none of them did, they kept on with this foolishness until finally KC acted out the final scene in the whole drama..in a horrible act of vengence on an innocent baby..for some reason Caylee was the scapegoat who payed for CA's sins. (how terribly sad that is!)
The family dynamics have changed now, KC finally moved out and now has a "job" and a 'place of her own'.. sitting in jail being a celebrity.. and she won't play the family crazy game anymore.. be interesting to watch the family dynamics change.. CA seems to have lost all control of KC.. and I bet it is much harder to control GA.
LA seems to have finally quit trying to be a part of the whole show, be interesting to see how CA and GA sort things out beween them.. I imagine the coming year will see some real changes.