@maxdancona,
Yes, when race is the sole determination as to whether one person gets a loan or another gets accepted to college, that is a problem.
When I said that Europeans are taller than Asians, I meant on average. You take samples of both population, make sure that the samples aren't biased (eg similar age and sex distributions) and likely will see that the average European is taller. This isn't to say that there aren't tall Asians or short Europeans. To assert that all races have the same average height is just not true.
Likewise, consider strength and agility. There are thousands of college athletes, but I observe that the NBA and the NFL are largely black. This is anecdotal, but I conclude that black men are probably stronger and more agile than white men, on average. I might be wrong, but I'll take the bet.
Now consider intelligence. There are 4 or 5 races depending upon who you ask. You are free to assume that this physical characteristic is the same for all races, but I don't know why you would be closed to the idea that you might be wrong and that the races could be ranked in order of intelligence.
This isn't to say there aren't brilliant people in each race and each race, for sure, will have their share of morons. Note, I am NOT saying that races have differences in average intelligence. I am saying, it is POSSIBLE that there are differences .
Differences in physical characteristics, also might be extended to subsets within the races as well. Poles have different physical characteristics than Swedes, for example. Differences aren't necessarily good or bad, they are just different.
Now, to go down a slightly different road, consider two populations, where one population thinks small feet on women is desirable. This population binds their infant girls feet to suppress growth and the other population does not. So someone comes along and does an analysis of the adult women and concludes that one population has adult women with larger feet than the other.....Seems like your argument would be ' Oh no, they have the same size feet...it's just that cultural differences and society have caused the one population to have small feet'...
You might , of course, be correct but it doesn't change the fact that there is a foot size difference between the two. But you might also be incorrect. If the population were to stop binding their little girl's feet, we don't know if the two populations would ultimately have the same foot size.
(BTW, my comments were initially in response to maxdancona's comment that we are all created equal...I don't think we are, but I do think we all should have equal rights )