Whatever B.H. Roberts concluded about the Book of Mormon, apparently it wasn't enough to make a person in his position publicly denounce Mormonism. From
his Wikipedia entry, however, the B in B.H. Roberts was for Brigham and he had three wives. It would take an awful lot to make a person in that position publicly denounce Mormonism. From all the descriptions I've seen of his book
Studies of the Book of Mormon, what Roberts concluded about the Book of Mormon was more than enough to discourage anyone who doesn't already have strong ties to Mormonism from entering the faith.
I haven't read Roberts's book and I don't plan to read it. The short excerpts that Everybody Wang Chung has posted seemed so damning that I wanted to ask how Roberts himself answered them in his book. I knew that he had in fact remained a professing Mormon for the rest of his life, so I assumed that he had some strong apologetic counterarguments to the criticisms of the Book of Mormon that he expressed as a Devil's Advocate. As I read more online about
Studies of the Book of Mormon, however, it became clear that Roberts never did find much of an answer to those devastating critiques. He expressed his critiques cogently, hoping that the divinely inspired leaders of his church would reply with decisive answers that would resolve all concerns, but instead the leaders merely assured Roberts that they believed the Book of Mormon was true.
From what I have read about
Studies of the Book of Mormon, it devotes a majority of its pages to the question of how much the Book of Mormon may have been copied from Ethan Smith's 1823 book
View of the Hebrews. Current Mormon apologists don't seem worried about
View of the Hebrews. They seem to consider this major concern of B.H. Roberts to have been satisfactorily addressed since his time. As far as I can tell, though, the apologetic defence here has only been to argue that the Book of Mormon cannot have literally been copied from
View of the Hebrews, in whole or in significant part, because the two books are not quite that similar.
I haven't read
View of the Hebrews either, but everything you read about it online today mentions that the ideas in
View of the Hebrews were commonplace American notions in the early 1800s. This seems to be the real point, that the idea of ancient Jews somehow coming to the Americas was no stunning revelation in the Book of Mormon. When it first appeared the Book of Mormon was "one of those books" dealing with a popular theme. It was pretty mainstream for the early 1800s speculation about how native Americans were Israelites.
This would seem to have been why Roberts devoted so much space in his book to
View of the Hebrews. Roberts seems like someone who might grow up in a religion of the early 22nd century that will be based on one particular superhero movie—and who discovers, "Whoa, there were other superhero movies?" The issue is not line-for-line or scene-for-scene plagiarism. It's the massively deflating discovery that something you thought was really special is actually just a typical example of a genre.
In the
preface to Treasure Island, R.L. Stevenson admits that his book is just like all the other pirate stories and that he is trying to get in at the end of the trend. Modern readers all say, "Whoa, there were other pirate stories?"—but
Treasure Island was a hit at first precisely because its theme was already well known at the time. Similarly, it seems, the Book of Mormon was a hit when it came out because it addressed the hot topic of American Israelites. By Roberts's day, Mormons had forgotten that the topic had ever even existed apart from the Book of Mormon, and the uniqueness of its basic concept seemed like one of the main reasons to believe that the Book of Mormon could be a revelation from God. Nowadays even Mormon apologists seem to acknowledge that American Israelites were a thing in Smith's day. They shrug as if this obviously isn't important, but imagine growing up thinking that nobody except Joseph Smith had ever suggested such a radical thing, and then discovering that what you thought were miraculously detailed revelations were all just memes from 1820s New England. This seems to be what B.H. Roberts confronted. Whether Joseph Smith ever held
View of the Hebrews in his hands is not the main point.
The other thing that B.H. Roberts mainly seems to point out in his book is that the Book of Mormon is just no
Treasure Island.
Treasure Island obliterated its own genre, turning all other pirate stories before or after into
Treasure Island fan fiction, because
Treasure Island is one of the most expertly crafted stories ever written. The Book of Mormon reads exactly like something a bumpkin from 1820s New England made up without even thinking much. He was a clever bumpkin but he was no genius and it totally shows. Mormon apologists like to go on about how complex and subtle their Book is, but they're just talking around the huge point that Roberts faced squarely—that the story is childish.
Stylometry and chiasmus are silly arguments in favour of the Book of Mormon; they do not mean at all what apologists would have us believe that they mean. Even if they were significant evidence, though, they would still be slight weights in the scales against the points Roberts made. He may have stayed in the Church—as if he had any choice—but he never found anything to outweigh them.
I was a teenager before it was cool.