Yet you sit in judgemet of us?
And you may want to be careful there wishing a Mormon (who is not your brother/sister in Christ, “God Speed”:
“Whosoever transgresseth, and abideth not in the doctrine of Christ, hath not God. He that abideth in the doctrine of Christ, he hath both the Father and the Son. If there come any unto you, and bring not this doctrine, receive him not into your house, neither bid him God speed: For he that biddeth him God speed is partaker of his evil deeds.” (II John 1:9-11)
And how do you reconcile your view with the example of Christ who ate with sinners, consorted with known prostitutes, and invited reviled tax collectors to be part of His closest friends?
Notice in your passage that it says one must ABIDE in the doctrine of Christ. That implies actively living out the Gospel daily in your life.
I think all my comments on this thread can be boiled down to this: Actions speak louder than words.
We can rebuke (reprove sharply) when absolutely necessary, we can admonish (express warning or disapproval, especially in a gentle, earnest, or solicitous manner), or we can condemn.
Due to the sheer number of Scripture quotes I can find about loving our neighbor and treating him with dignity and respect, and those about avoiding the temptation to feel we are better than others, I feel that indicates Christ would rather we admonish.