Would I pass as local in your country?

Nah, too dark for Costa Rican master aryan race

basado

Yes, and you would be known as "El chino"

No, too wh*Te

sadly yes

But his hair isn't curly

yes he would but there would be an understanding that he only interacts with the mexican community and businesses.
if he goes into an english speaking business, he will have his 7 year old kid translate and order for him.

Most definitely

...because of his slanted eyes.

Ahh el dfANO