there is no point in justifying or downplaying ridiculous mormon beliefs by pointing out they are not any crazier than those of the bible.
If that were the argument at hand, this would be relevant. It's not. Let's restate the argument as clearly as possible:
Is it "racism" to assign a special role to a single family, and then have that family serve extended family that are not allowed in this role ?
....but taking your word for it, what do i think of the book of mormon claiming people dark skin are righteous while people of light skin are wicked??
Oh, for the love of pete, we need to break this down further, if you haven't read the book. Let's try this again:
Most righteous---People of Ammon---dark skinned
Start good, turn bad---Nephites---light skinned
Start bad, turn good---Lamanites---dark skinned
Most wicked---Gadianton robbers---light skinned
So the race issue isn't as cut-and-dried as your few verses would make it seem. The Book of Mormon has good and bad of every color, and it shows that people change, too.
God cursed the Lamanites in this passage with dark skin.
PLEASE EXPLAIN TO ME, IF RACE AND SKIN COLOR REALLY DOES NOT MATTER WHY IS IT EVEN MENTIONED?
As I already said, much of the Book of Mormon has light-skinned narrators, who frankly admit that they are racist. You are quoting from an edited summary of the Lehite history. When this "curse" is explained later in greater detail, it's explained that God changed the Lamanites (or allowed them to change) so that the Nephites would not intermarry with unbelievers. Their biases of individual events does not change the fact that the overall message of the book is that God doesn't care about skin color. He cares about what is in your heart.
"For none of these iniquities come of the Lord; for he doeth that which is good among the children of men; and he doeth nothing save it be plain unto the children of men; and he inviteth them all to come unto him and partake of his goodness; and he denieth none that come unto him,
black and white, bond and free, male and female; and he remembereth the heathen; and all are alike unto God, both Jew and Gentile."