How do people from south of the US border refer to themselves collectively?
In the US the terms "Latino" and "Hispanic" are used interchangeably to refer to people who live in or are from south of the US border. In a recent post in another sub I used the word "Hispanic" to refer to Argentinians, which engendered something of a flame war in the comments. Apparently there is a segment of the world's population who insist that "Hispanic" strictly refers to the Spanish.
A lot of unpleasant things were directed at me personally (arrogant anglo was about the nicest thing said) as if I was personally responsible for US English. (There was also a extensive discussion from Argentinians who insisted that they were in fact Hispanic.)
So here's my question: knowing that not pissing people off on the internet in a fool's errand, I still would like to use the terminology that the people who I'm referring to prefers. So how do people who live south of the US border refer to themselves collectively?