Examine how O'Brien shifts the blame for Winston's condition onto Winston. How accurate is O'Brien's argument?

O'Brien is brain washing Winston by using logic that Winston relates to. He says that Winston suffers from mental illness by refusing Big Brother and the party. Winston suffers because he chooses his reality over the party's reality: Winston is only hurting himself by not accepting the Party's "truth". O'Brien says that Winston must be cured from his own insanity.