After all, Ginny while possesed by the soul of Voldermort did not have any insights into anything, and in fact was unaware of the role she was playing, and a puppet of Voldermort.
Ginny was possessed, she was not a horcrux. Big difference, IMO.
I don't think simply having a horcrux within you means you are possessed by it. I think those other souls are dormant until needed. Otherwise, Voldemort may have set himself up for 7 different Dark Lord from his splicing of his soul.
Comment