It’s time to take the gloves off. Libertarians do not give a damn about “groups” in whatever guise they come or for whatever reason they are posited. I will later join the academic debate on races as defined by clusters of genetic features and the drift of those clusters over time… but not right now. I think it is more important to establish the political and philosophical stand which we as libertarians take.
Individuals matter. Groups do not. Group politics in whatever form it appears is the Tranzi philosophy. If you could absolutely and scientifically prove one group genetically inferior to another you would accomplish nothing except establish that group for eternal victimhood under their philosophy. You succeed in making entire “racial” groups into “the genetically challenged” who then “obviously” must be protected and helped by – you guessed it – government!
The libertarian sees a person, not a member of a group, however scientific that grouping is purported to be. If that individual is a good person and successful at life and acts morally and ethically, then they are praiseworthy. If they do evil things and throw their life away, we don’t excuse them for their past, their origin, race, religion, sex or genetic makeup. Perhaps genetic feature clustering gives an individual a propensity for some particular behavior. Genes are not destiny however, as I’m sure Dr. Richard Dawkins would say.
Personally I find “genetic feature cluster” a much better term than the ill-defined “race”. Race in modern usage is synonymous with skin-colour, which is quite an inaccurate biological definition. Skin colour is merely an outward sign of the expression – or suppression – of one particular set of genes. The classical definition is probably truer to reality. I live amidst the Celtic Race for example. Celts have a unique history and certainly have identifiable genetic differences from the Rus for example. I personally am somewhat mixed but predominately Celt. Not a white (a rather useless term): a Celt.
Someday there will be enough genetic data from sequencing to calculate the true clusterings in gene space. We may at that time find humanity is broken into separate point clouds (races) or is a continuum in which there is no particular boundary, merely a space filling random fuzz. The fact that some features such as skin colour are apparent to our visual apparatus is not of great utility in actually defining the reality of human subspecies.
I believe we will one day find there are indeed definable feature clusters, but in an intermediate between the two extremes; they will be denser knots which either interconnect at their fuzzy outer boundaries or are bridged by weak cluster lines. If we were to find a cluster that is completely isolated, I would consider that strong evidence for a lineage on the way to speciating. Since all humans are mobile and interfertile, I do not believe we will find such a case.
Feature clusters (“races”) are not fixed. They drift, mix, merge and mutate over time. They are not necessarily tied to external features such as skin colour. One cannot possibly declare an Australian Aborigine and a Masai to be of the same race. They are possibly more genetically distant from each other than the Masai is from the Celt. If one wishes to look at genetic diversity within the human gene pool, the largest part of it is in Africa, so it stands to reason a scientific measure of race will find more races on that continent than on all the others put together.
The rates of interracial marriage in America, if extended over a reasonable time frame, say a thousand years, will lead to a unique “American race”. It will not sit at any of the current points in gene space of any of the current “races” It will reside at a unique new spot in that genetic n-space. All now living americans will find some of their genes in that future American gene pool; however some alleles will have outcompeted others and will be dominant. Due to climate, one would expect light skin to have a competitive advantage; other genes from other races will win the top spot for other features.
Of course if we do get a severe climate change, then the dark skin adaptation will win and a completely different set of winning alleles will define the new race.
Please recognize this is a thought experiment. It assumes a stable population more or less cut off from the outside. I believe there will be more, not less, movement of individuals over the next thousand years. I am a technological optimist. I expect us to continue the upwards trend in knowledge and the consequent upward trend in human welfare, income and mobility.
If I were to bet on any long term trend, it is that in ten thousand years the ease of travel will have made earth’s gene pool rather homogeneous and the far colonies in the Oort Cloud will be not only racially different but well down the road to full speciation.