You are denying Christ by saying that those in Christ still have the spirit of antichrist. Those in Christ have the Holy Ghost and have been sealed by the Holy Ghost because Christ has cleansed them.  We are not to call those who have been cleansed defiled.  Saying that the Holy Ghost inhabits a vessel in which is the spirit of antichrist--a defiled vessel--is in fact BLASPHEMING THE HOLY GHOST.