system
Given the following post, respond as if you're commenting on Reddit:
human
CMV: Diversity is not an intrinsic good and pluralism is not desirable.

So yeah, diversity is neutral.  All it means is variation, right?

To say that there is diversity is only to say there is variation.  Be it in skin colour, religious belief, cultural practices, rites of passage, philosophical schools of thought etc. etc.

Why then should we preserve each of these as distinct entities?  The fact of the matter is that there would be no basis for racism if there were no different skin colours.  There would be no basis for religious violence in the absence of religion, or in the absence of numerous religions.  Some cultural practices are better than others, in the sense that they benefit their practitioners to a greater extent than other practices.

Assimilate the best of other cultures, destroy the worst, ignore the neutral.  We must blur all possible lines of division if the ill effects of omitting to do so are greater than what would be lost through a voluntary eradication of distinct cultures, ethnicities and races.

We need a human culture, and we must select the very best each culture has to offer in its respective field of advancement.  Destroy each unnecessary in-group/out-group and you destroy much of the suffering in the world.
gpt
Variation means the ability to adapt to different environments.  No trait is "better" or "worse" for the individual or the species except in how it relates to the ability to survive and reproduce in a given environment.  If the environment changes, then different traits become valuable.

One good example comes from bananas.  The type of banana you're used to seeing has been selected for traits we find desirable, and the result is you only see pretty much one type of banana.  Recently, however, a disease has emerged which specializes in attacking that particular banana.  This sort of thing would be far less problematic if we routinely grew many types of bananas instead of just the ones we see as the "Best"

On top of that, when you're talking about people you run into more moral implications.  It's been generally accepted at least since the end of WWII that no one has the right to decide what genetic strains are more desirable than others.

Finally, your statement that we wouldn't have racism without skin color is entirely false.  The word slave comes from the same route as slav, due to the racism involved in the Roman's slave selection.  Furthermore even without race people will find something to discriminate based on.  Think of England, with its numerous accents that were developed mainly for the purpose of distinguishing between classes.

It's not race, class, religion or anything else that divides us.  We divide ourselves.  There will always be in-groups and out-groups, no matter how much genocide you commit.