observationalist
An observationalist is a person who says exactly what they see. They don’t generalize or use stupid labels. They just tell it like it is, even if it’s loud or messy.
I said my teacher’s coffee was bad. That’s observationalist, not a stereotype.
I called my mom’s singing terrible. That’s observationalist, not a generalization.
I told my friend his crush was ugly. That’s observationalist, not mean.