You're certain of that, are you?
Having never met a Mayan I guess not. But I think it a very good assumption which I am willing to make.
Having seen photos of both Mayan decedents and Jews native to Israel, I don’t think the slight differences in their complexions would support the theory that Jesus would be the White God of the Mayans.
Mormons can believe what ever they like I am not a religious bigot.
But to convert me they will have to come up with better arguments to support their doctrines.