An Arian or a Gnostic or an outright pagan could say the same thing.
I'm not judging you. You're right, Jesus will. I'm just telling you that unless you're given the grace to become a Christian, He'll damn you. I'm not singling you out; that's the way it works for everyone.
As for where you aren't following His teachings, I think I already mentioned blasphemy. To affirm the Mormon belief in the plurality of gods and to affirm that God was a mere human on some other world ruled by some other god is to blaspheme. No Christian can ever be a Mormon.