I don't get the connection with permissive parenting but I will say this....

I once had a therapist who told me that the most messed up clients were those who had parents who never fought. Makes sense. Daily life is FULL of conflict, and if you never had a model for resolving conflict...I can't imagine what that must be like. (I'm on the opposite end of the spectrum....lots of conflict in the family, so I can let a lot of things go pretty easily and resolve them sooner than many others.)