Why is it ok to call someone from Japan or Korea chinito? Is it ok to call everyone from Latin America "little Mexican"?
No said it was "ok." Some people just think that it may not be racist as many foreigners perceive given the cultural context.
I honestly don't think the majority of people here use "chinito" as a racist term. I think they use it because that's the only type of Asian person they've been exposed to. While there are Japanese and Korean communities here, the Chinese community is much larger, BY FAR. I'd be shocked if most people here can even tell the difference between a Korean person and a Chinese person... the same way many Asians say they can't tell the difference between someone from New Zealand, Canada, Australia, etc.
I know trying to paint everyone as a covert racist is in style these days, but please - Buenos Aires isn't and will never be Berkeley.