Oh, but yes you can argue with their results. Their "religion" was invented by a stone-reading, bigamist (married over 40 times), adulterer, child molester (some "wives" were 12 or 13 years old), embezzler (run out of many towns for big-time theft of other peoples' money), and inventor or the most bizarre historical mistakes and history, all the while being revered as a prophet of God (or of God himself).
So, yes, you can argue with their results. Their whole religion is a house of cards with their adherents on a quick road to hell if they don't accept Jesus as their ONLY god.
Their own, great Brigham Young said it best:
"Now if any of you will deny the plurality of wives, and continue to do so, I promise that you will be damned;
and I will go still further and say, take this revelation, or any other revelation that the Lord has given,
and deny it in your feelings, and I promise that you will be damned.
Brigham Young - JoD 3:266 (July 14, 1855)