You may have a point. Both groups seek to control the daily personal activities of their adherents to a degree that is astonishing to Christians. And both have a holy book that is held in higher spiritual esteem than the Bible. And both tend toward an us-them view of the larger world.
That is untrue.
I am a Mormon, and there is no control or compulsion in the Church.
For instance, we are asked to "keep the Sabbath Day holy".
There is never any detail of what that means. You will never hear a sermon explaining what is appropriate and what is forbidden.