We are physical creatures.

We have a physical nature.

Our brains care intimately about the traits/health/beauty of the human body; this is a core aspect of human nature; presumably evolution has shaped us to be this way.

Studies reveal that this is true from infancy.

Given these facts, why on Earth would someone call someone "shallow" for following this intimate aspect of our nature? It's deep. It's as deep as anything else that you experience emotionally.

You can't separate love from this aspect of human nature; looks and physical traits are a deeply emotional thing, not a "shallow" thing.

I'm not sure where this whole notion of "shallowness" comes from, but it seems to arise from:

  • denial/confusion about how physical human nature is

  • denial about the depth of the emotions that you feel when you see a physically-stunning member of the opposite sex

  • denial that a beautiful face/body can provoke an emotional response as deep as anything else can in this world

The 2017 film Baby Driver inspired this post. Terrible film. Waste of my time. But Lily James's physical beauty made my heart flutter. I've heard that she's a terrible actress, but her physical beauty makes me feel like I was punched in the stomach. (It's probably her voice/mannerisms/verbals/nonverbals too, I guess, to some extent; I'm not sure what experiments might be possible in the future to test the emotional effect of physical beauty by somehow controlling for voice/mannerisms/verbals/nonverbals, if that even makes sense.)

Does anybody understand why this nonsensical "shallowness" notion is so prevalent? (I assume that it's not some simple explanation like "ugly people invented it" or something like that.)

ETA: The "shallowness" concept sets up this idea that there's what's on the outside and there's what's on the inside, and it's somehow wrong/unnatural/bad to care intimately about what's on the outside. /u/NalkaNalka's comment here is extremely interesting because it points out that people's bodies/wealth are a central part of their identity as a human being, and it's therefore not "shallow" at all to pay attention to the physical/material and to care about the physical/material:

people's looks and the size of their wallet as just as much a part of who they are as their sense of humor and their political beliefs.