Believe what you wish, my friend, but very few of the early LDS leaders led peaceful, happy lives. They were imprisoned, mobbed, run out of their homes and forced to leave their property to those who ran them off. Some had their children shot in front of them, or, in at least one case, saw their children's heads bashed in. (They boasted that it saved ammunition.) The only thing that would have motivated me to stay with such a movement is that if I knew it was true. And, finally, keep in mind that Martin spent his entire wealth financing the church's interest, including publishing the Book of Mormon, which often was given away or sold well below cost.
Jews were persecuted during the holocaust, Christians are reportedly persecuted in many places, even Jehovah's Witnesses faced persecution. As much as I hate to see people hurt for any reason (especially for their beliefs and their convictions), I cannot use that as a basis for judging that their religion is the correct one. Can you?