Self Segregation

Why do we do it? It's definitely not a conscious choice.
Learning about ethnicity in Gov20 has taught me that ethnicity is "ascriptive", we chose what/who we are based on what will benefit us the most. Certainly we can't change our race, but we can choose how much to emphasis it, or let it dictate who we are.
Borders and boundaries are arbitrary.

Yet we still choose to follow them so closely.

I've met someone at school who completely disregards his heritage, and it makes me irrationally irritated. But is that just because I haven't been able to move beyond my own boundaries? Either way,

These things are pretty much pure sugar
and so bad for me.

I apologize for the bad lighting in the photo. Haven't yet figured out how to fix that via photoshop.