The most that can be said about races is that they are statistically biased toward certain positive and negative qualities by their genetic makeup. However, these are generally not significant enough to consider them anything other than minor variations; they are not even distinct enough to be categorized as separate subspecies, which would be one of the largest breaks for that argument. They are, as one imagines, regional variations that have adaptive qualities to favor that environment they found themselves in. In the more modern era, these are not generally that important - technology takes the place of many of these biological advantages, but not always - yet there are outliers that would be considered remarkably beneficial. This also works in reverse in the sense that disadvantages are mostly mitigated.

It also is worthy to keep in mind that speaking only from a pure numbers perspective, the vast majority of people will have roughly the same number of advantages and disadvantages regardless of race; people are more likely to be average than anything else. Certainly some traits will be more useful now than they were before, that is just the reality of things, such as having a bias (but [i]not[/i] exclusivity) toward a higher than average intelligence and upper threshold of it, but it regularly will not be significant enough to matter. There are too many other factors when dealing with humans that are more likely to change that outcome. It is easier to say, measure the success of average mountain lions in their predation than measuring the success of average people doing so, even with access to primitive tools to establish a baseline from.

Even if we took an example to an extreme, it is unlikely to have every day proof in action. Over an aggregate long term this is true, but the human dynamic is outpacing evolutionary design. You are more likely to see your exceptional or above average of [i]any race[/i] do better than those par for the course who have just a less pronounced advantage. This is more to the advance of technology, culture, society, et cetera.

In short, yes, race does technically exist as well as it does influence positive and negative, speaking only to natural potential, but what it accounts for in modern factoring is not really all that large. The individual themselves have significantly more power than that.