Godiva. said:
Most Argentineans are insensitive when it comes to race, but there's not much racially motivated crime or violence here unless you count pickpocketing Americans a race crime. They may stare, joke, ask silly questions, or make broad generalizations, but for the most part it's harmless, though uncomfortable and maybe slightly insulting.
I think what happens as well is that people take comments too personally or see racism in situations where it might not exist, especially if they feel like they stick out. Miami is a diverse place, yet when my sister in law visited she said she felt people were staring at her and my brother because she's Asian. Of course walking on the beach with their pasty white skin, long pants, and very brightly colored shirts had nothing to do with it! Not to discounts anyone's experiences, but sometimes people feel persecuted when they shouldn't.
Argentineans will use whatever descriptive words they have at hand, so it's not usual for them to mention skin color, hair color, or body shape when talking or insulting. Being called negro or chinita is a term of endearment. I think it might be difficult for people who are used to blending in or to never have their race mentioned to adjust to the culture here since Argentineans really see nothing wrong with pointing out your physical differences or your nationality. They certainly aren't going to tiptoe around it.
And just to mention, lacio means straight when referring to hair. It could also be used to describe a person (lazy.) Long straight hair is valued in Spanish/Argentinean culture, so I'm sure it wasn't meant to be insulting. Google 'pelo lacio' and you'll see it is exactly referring to the flat iron/stick straight/little volume look.