I don't much care about the preservation of any race. It's an exercise in futility. If you personally choose to marry white to produce white offspring, more power to you. This concept of "white erasure" seems a bit absurd to me though.
Also, IQ is genetic - true. Are you suggesting that other races tend to have dominant genetics in that area as well? I don't know that I buy that. Sure, dark eyes and skin are dominant genetically speaking. Just because a child is born with the physical traits of one parent, it does not mean that every other gene that came from that parent was dominant.
I don't much care about the preservation of any race. It's an exercise in futility. If you personally choose to marry white to produce white offspring, more power to you. This concept of "white erasure" seems a bit absurd to me though.