Well TA, I believe that you're holding back some salient information. Yes, there are 3, "witnesses" of the Golden Plates who were all leaders of the church, 2 of whom went in and out of retracting their testimony. The, "Eight Witnesses" were all family members of 2 of the, "3" (Smith and Whitmer). There also is evidence that Joseph Smith was convicted of scamming people with a, "seer stone" to find hidden treasures (he was also convicted of bank fraud after founding the Mormon church). There is even more evidence of massive contradictions between his book and the bible, including differences in the nature of Jesus Himself. There's a lot more I could write but suffice it to say that I've seen enough, "evidence" to be convinced of the untruth of the Book of Mormon and of the Mormon faith.
Also, you seem to be confused about, "other religions". Mormons claim to be Christians, so the historical evidence of the Christian faith is evidence for their faith as well. There just isn't historical evidence backing up the claims of the Book of Mormon.
No, the same, "evidence" doesn't exist for other faiths, this is a false equivalency like comparing the evidence for Christianity to that of a modern-day suicidal cult. Buddha left his family to mediate on a hill then declared himself, "enlightened". Mohammed claimed to be in the line of the biblical prophets but there are massive contradictions between the Koran and the bible. Yes, we know they existed, but that doesn't compare to the evidence backing up Christianity, with 1,500 years of prophecy and teachings underpinning the faith (none for Mohammed, at least not that I find credible).
That said, almost literally nobody comes to become a biblical Christian because of or even including historical evidence, at least not in my experience. Usually they are at a point in their lives when, for whatever their reasons, they long to be connected to their creator.