I like this comment. But it shows a misunderstanding of the topic. The existence of xenophobia does not give rationality to racism but instead shows the irrationality and tribal nature of humans.

You’re using circular reasoning.

But let’s save some time and cut to the heart. Please scientifically explain the rationality of racism to me (or) share a peer reviewed scientific article that demonstrates that it is rational to be racist.

Or more likely, say you don’t have time for this and scamper off, aka the Fermat’s last theorem method.

I enjoy a good Fermat joke 🤣