1) Do you believe that God the Father is a white-haired bearded white man?
Don't know, maybe he shaved it off since 1830.
2) Do you believe that God the Father stepped down from his throne and joined with
his spirit-daughter Mary to beget Jesus in the same manner a men begets a child with a woman?
Ever hear of IVF?
3) Do you believe that the Curse of Cain Doctrine was never a doctrine of the Church but just some
"personal opinion" by a few Church leaders?
You mean as it is described in the Old Testament?
4) Do you believe that Adam and Eve were the first humans on earth, two white people?
Adam in Hebrew means "red" and implies ruddy complexion or red headed.
5) Do you believe that Noah took all animal and reptile and insect species with him on the ark?
Perhaps. Hugh Nibley questioned the whole earth flood.
6) Do you believe that a black son of Canaan, married his sister, built a raft, and took hundreds of unique marsupial species and thousands of totally unique plant species on the raft and went to Australia?
Who knows, again, Nibley questioned the concept.
7) Do you believe that all those living in 1832 will not die until a Temple is built in Jackson County on the Temple Lot (Brigham Young, Orson Pratt, Joseph Fielding Smith, and Bruce R. McConkie believed this)?
Similar statements were contained in the New Testament about the second Coming.
8) Do you believe that perhaps a million Nephites, men women and children, died at the Hill Cumorah near Palmyra, New YOrk, during the final Nephite/Lamanite battle?
No idea the number, racial composition of the mass of people or the location.
9) Do you believe that the millions of Nephite horses, oxen, cows, sheep, and goats, all died out without one "bone" remaining to prove they ever existed?
We have no idea what animals were described or which ones were cultivated to a degree. We know the Egyptians had camels, but rarely depicted them as they were considered labor devices.
10) Do you believe that God went "poof" and changed the white-skinned-hairy-round-eyed-curly-haired Jewish Lamanites into the smooth-skinned-asian-eyed-dark-skinned-straight-haired Lamanites?
I believe there are two explanations possible. The first is that the Nephites who departed from God simply intermarried into indigenous tribes and thus "turned" dark. Traditionally, ruling classes in Egypt married family members to keep their races separate from the general population and from what I understand the Inca did the same. This is why, in a war, if one kills off the ruling families then the population would follow you. Sort of like if the Chinese had come into Latin America in 1900, slaughtered the white elite ruling Peru, and assumed power. The average Indian would not have cared. The other possibility should not astound people of today. Only a few genes are responsible for skin color and with simple genetic manipulation our scientists can do today an embryo can have its race "changed." Why could not God do that? Seems less impressive nowadays as it might have been back in the 19th. Century.