As I have said before, the Book of Mormon is not “plain and simple”. Because it is written in such difficult language, it is very difficult to read and understand.
I am reading Mosiah. There is a section where people are distressed because the younger generation were not members of the church. The people of the church made accusations of sinful and crminal deeds by nonmembers. The church leaders took the accusations to Alma Sr., who took them to Mosiah. Later, Mosiah made a law that false accusations were against the law. Obviously, he examined the cases, and found that many of them were confabulations by people who wanted to punish people who were not church members.
Alma Jr. was a wild and reckless youth, who was in opposition to the church. Alma Sr. prayed for him, and his prayers were answered in a very impressive way.
I uncovered this story by translating it into plain English. There is something to fix in about about every sentence. No wonder they are so judgmental!! They can’t even understand their own book!!!
And, of course, is racism moral? Mosiah’s lament in Moroni 9 talks about the Nephite sin of racism, which contributed to the destruction of his people.
I doubt that those LDS that you know are as “good” as external appearances indicate.
There are other examples, but others can make contributions.