Scientists, even those in the “hard” sciences that are based primarily on empirical observations and mathematical analysis, have their own dogmas, prejudices, incentives, and conventions.
When it comes to science in the courtroom.
Objectivity is out. Testability is out. Keeping an open mind is out. Skepticism is right out. The appeal to authority is not a logical fallacy but fundamental to science.
All you need is an expert in the field who shares your opinion and has a plausible theory that can sway jurors or create a reasonable doubt.
This is also why people with expertise in a field pertaining to the case are frequently excluded from a jury pool. For example they don't usually want an accountant who already knows what embezzlement is to be on the jury etc. Lawyers don't want an intelligent jury, they want one that will believe their expert witnesses.
There were many ancient american civilizations and it's possible that some of them may have been the ones described in the Book of Mormon.
I linked to the BYU article because it's a scholarly article explaining the evidence for precolumbian horses in America. Critics often say that because the natives weren't riding horses when Columbus arrived there weren't any which is false. Centuries-old bones of horses unearthed in Carlsbad Remains Show Ancient Horses Were Hunted for Their Meat.
There's not enough archaelogical evidence left behind to definitively rule either way. However, the Hopewell Culture did have an advanced writing system, clothing, agriculture, trade, fortifications and earth mounds; all of which are described in the Book of Mormon. They also disappeared at the same time as recorded. I see the evidence of a great civilization that lived here before us and we are very fortunate to have their record.
Then of course there's the Mormons, who believe in the Bible the way the regular Protestants do for the most part, but then they add a whole new book about Jesus coming to visit a bunch of fictional civilizations in the Americas before Europeans got there
There is plenty of archeological evidence pointing to advanced civilizations in what is now the Eastern United States. The Hopewell Culture for example flourished around the same time as one of the groups described in the Book of Mormon. There is also evidence that native americans had the ten commandments and that there were precolumbian horses.
If Christ had followers in America, why woudn't he visit them, he even spoke of doing so in John 10:16.