@JLNobody,
Well that is true not only at an individual level...but it seams that many believe otherwise as a one more mean to fight racism...Noble yet ineffective as to my understanding the resulting effect is perverse achieving precisely the opposite of what it aims for...in my perspective there are races just as there are genotypes, groups with different strategies for success, from the playful personality, to the seductive, up to the order abiding straight hard working type, they compose society and make it work as an ecosystem...intriguingly the variety is not that much, I wonder if it is related with the Homo Sapiens mass extinction in the ice age period...
...Concerning races, to my understanding, is not gene X or Y alone that make the difference, its very much true that any gene for itself is almost negligible...but nonetheless there is an holistic overall effect that makes some groups more similar then others, and that is so bluntly plain self evident that necessarily should not be denied...again, as for genotypes, to my observation they are trams-racial, and in any race can be found the similar traits of mood, disposition and forms of moral or ways of engaging work...as I said being more related with Society as an ecosystem I suppose they are needed in all, although not necessarily in the same amount.
For last I want to clarify that this description concerns my experience and opinion from my observations and years of interpretation upon the matter, thus having no pretension to any scientific status.