Hey, Who Are You Calling a Cult?
The LDS Church is less of a cult than many of the religions that accuse it of being one.
Automatons? Those who have actually lived in a Mormon ward--and especially those who have tried to lead a group of Mormons in any kind of activity--can all affirm one truth: Mormons may well be the most stubborn, independent-minded group of people ever assembled as a religious community.
Joseph Smith received a revelation that established the only style of leadership that actually works in the Mormon church (or, in the long run, anywhere): You can only lead by persuasion, by love, by patience, by your own willingness to learn from those you lead. Every now and then, some local Mormon leader will try to give orders or attempt to manipulate people into doing things his way. But he very quickly learns that the more he does that, the less obedient we Mormons become.
Far from being robots, most of us Mormons are, by inclination and by doctrine, determined to make up our own minds about everything. It's a core doctrine of Mormonism that each member of the church is personally and individually responsible for their own relationship with God.
Isolation? As for the cultish trait of isolating converts from any other influence, or brainwashing them till they can't think for themselves, our method of teaching would-be proselytes is the opposite. We usually teach them in their own homes. Our missionaries come for a little while and then leave them to themselves to read, ponder, and pray. We counter the attacks of anti-Mormons by telling the truth about our beliefs and practices, not by trying to cut off contact with our opponents.
Far from becoming isolated, a new convert to Mormonism is taught to be more respectful and loving to parents, spouse, children, and other family members and friends. They usually do better at their careers and education, and if withdrawal takes place it is because their new Mormon lifestyle and beliefs are rejected by their family or friends.
Kettles and Pots
On all these points, I daresay that the Mormon church is less cult-like than many of the religions that delight in calling us one.
Indeed, calling Mormonism a cult is usually an attempt to get people to behave like robots, blindly obeying the command that they reject Mormonism without any independent thought. Kettles, as they say, calling the pot black.
Here's the simplest statement I can make: If Mormonism were a cult, I would know it, and I would not be in it.