Interesting problems with the book of mormon

Who wrote this?

 Mosiah 17:9-20 Alma leaves in verse 3. He runs off and hides so that he doesn't get killed. Then, with only King Noah and the wicked priests in the room, Abinadi says some more things. Who would have been there to remember this? The wicked priests never repent, they stay wicked and cause more problems later and King Noah is killed. These verses can only exist if the book is fiction written by Joseph Smith or if God is dictating these words to Alma. If God is doing the dictating though, why dictate to Alma? He lives in a time where he has to go find food every day or starve, he's on the run and doesn't have time to forge metal plates, engrave them, and then save them somewhere to eventually hand down to a kid he has no way of knowing he will ever have. Why not just dictate straight to Joseph Smith if God is going to do that? And if he is going to do that, why bother with gold plates at all? It would have been a major hassle for someone in ancient America. Just make the whole thing indistinguishable from a fraud and have Joseph author a book and claim he got it from God.

Relatedly, if God will work a miracle like dictating to Alma or Nephi something no one righteous would have been able to hear, why don't we see similar things now?

He was baptized where?

1st Nephi 10:9 says "And my father said he should baptize in Bethabara, beyond Jordan; and he also said he should baptize with water; even that he should baptize the Messiah with water." 

John 1:28 says "These things were done in Bethabara beyond Jordan, where John was baptizing."

The name Bethabara that shows up in 1st Nephi and John 1, didn't exist when Jesus was baptized around 30 C.E. In Jesus's day that location was called Bethany. The name Bethabara was the name of that same location but in the 3rd century. A Palestinian scholar noticed that there was no place called Bethany while working on some manuscripts and posited that instead of using the name Bethany they should replace it with Bethabara. [1]

This is a problem for the Book of Mormon because Nephi, being from the Jerusalem area would have known the name of that location by the name used in 600 B.C.E. or if he was receiving revelation would have known to use the name Bethany. Why would he use the name Bethabara when it didn't exist at his time or at the time of Jesus?

Some might argue that Joseph had his version of the KJV nearby while translating and would some times pull it up when going through Isaiah chapters or other sections of the bible that show up in the Book of Mormon, but in this instance, he's translating a dream that has nothing to do with the bible other than discussing similar events. Why would he grab a bible to look up the location of Jesus's baptism when he should be seeing the word "Bethany" on the seer stone? Why would he ignore that and have the scribe write Bethabara instead? Especially when he knew and as members we know, the bible has errors. [2] Also, Emma, David Whitmer and Martin Harris said that the translation wouldn't continue until they wrote what appeared on the seer stone or urim and thumim. [3] So, the idea Joseph would just pick up a bible and have written what ever he wanted goes against the claims of the people close to or involved with the translation.

Who is this for?

Moroni 1:4, Title Page, 2 Nephi 30:3-6 all claim that the book of mormon is for the Lamanites. It's important that we know who they are so we can get this book to them. According to the church's own essay [4] and [5], we don't know who the Lamanites are or where they are.

Joseph and most prophets until DNA proved them wrong, thought that Native Americans were the Lamanites [6]. Why would the prophets get that wrong?

 

[1] - https://en.wikipedia.org/wiki/Al-Maghtas 

[2] - Joseph wrote the articles of Faith, number 8 says we believe the bible to be the word of god as far as it's translated correctly. Also, Joseph did a translation of the bible because he knew it had errors, that's where the JST came from.

[3] - http://www.mormonthink.com/transbomweb.htm the section called "The actual method used by Joseph" 

[4] - https://www.churchofjesuschrist.org/study/manual/gospel-topics-essays/book-of-mormon-and-dna-studies?lang=eng

[5] - https://www.churchofjesuschrist.org/study/history/topics/lamanite-identity?lang=eng

[6] - Joseph claiming some bones were lamanite bones from shortly after the book of mormon times https://www.churchofjesuschrist.org/study/manual/church-history-in-the-fulness-of-times/chapter-twelve?lang=eng#p18

[7] - https://www.fairlatterdaysaints.org/answers/Polynesians_as_descendants_of_the_Lamanites_in_the_Book_of_Mormon

    Some data on the above page are clearly church apologetics that don't agree with general consensus

    https://en.wikipedia.org/wiki/Rapa_Nui_people

    https://en.wikipedia.org/wiki/Polynesians     

    Both wiki pages indicate that Polynesians and the people of Rapa Nui where from Asia.