Wow, we are anthropomophizing fish again. I said this for Malawian peacocks, not for people. I don't give a crap about ethnic heritage--if I cared about the purity of the race from whence I came, it would be pretty hypocritical, since I am not a "purebred."
The point is that these fish are GEOGRAPHIC variants, and thus would NOT occur in the same regions in the wild. They might interbreed, but it is not possible in nature because of lack of geographic proximity. If I want to know what type of cichlid I have in my aquarium, it would be nice to know that geographic variants are not mixed, since they could soon be different species. I don't care about mixing color variants from the same region, because they are (almost) 100% for certain the same species.
Also, just because different species can interbreed in nature doesn't mean anything. For some reason, they don't...maybe because they have access to members of the same species, and pass their bloodlines along that way.
I don't disagree with you on the fact that some of our captive-bred specimens are quite different from the wild ones, but then, at least, I know exactly what they are to the extent which I would like to know.
My statement, which you clearly misunderstood, is that geographic variants could soon be ruled to be separate subspecies or species. Any man-made cross between those is a hybrid, and would be left scientifically unclassified, so, even though you clearly misunderstood my statement, you reacted at least a little correctly when you said that the captive animals would not become new species or subspecies, but if they are already different variants/subspecies/species...we don't completely know the taxonomic status of all the geographic variants, so we don't want to interbreed them.
Does this help?
Matthew