system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do anthropologist say race is not a thing.

Are they denying people have different color skin or is it something else? It has come up a lot recently and I find it very confusing.
gpt
It's because genetically speaking the differences are incredibly superficial, with skin colour being decided by just a few genes.

There are greater genetic differences between two individuals than there are between the "races". It only seems like such a huge deal to us because we are visually confronted with the differences.