Hopefully the Vulcan Elders will see the logic of strengthening the genes with outsiders and not go isolationist.

Does it work like that? I remember, I think it was with the Klingons, that it took a lot of genetic manipulation to create a child between the two species, it didn't happen naturally at all, or very, very rarely.

I think it would be socially responsible for Spock to donate his DNA for the future of the Vulcan race, but that doesn't mean he has to dump Uhura.