I dunno, but the majority of interactions I've had with visiting, or immigrated, latin Americans has been great. I know that doesn't necessarily indicate anything other than me maybe having good luck, but it has left me with a default stance of friendliness and welcome for folks from the rest of the continent/s.
In terms of exposure, yeah, most of my interactions have been with Mexicans. We have a really big Mexican population in the area.
But we also have sizable contingents of Nicaraguans, Venezuelans, Guatemalans, and a smattering of Brazilians, with a few from most of the other south American countries. Never met a Peruvian though. One of my best friends is a second generation Nicaraguan immigrant, and you'll never meet a better guy.
Now, in terms of deep exposure to the cultures of central and south Americas, it's mainly Nicaraguan for me, plus Mexican for the North American contingent. I really love the experiences I've had with my friend's family, so definitely a fan of Nicaraguan food and at least their iteration of the traditions.
I also really appreciate how community driven the Mexicans in my neighborhood are. There's almost always a gathering of some kind in a given week, and they're all really open to neighbors dropping in and chilling. Great food, great music, and they don't make fun of badly mangled Spanish. My neighbors next door were having a small get together today, so there was music going while I was in the yard working, and it was really nice. A mix of tejano, norteño, and mariachi. I dunno what they were cooking, but it smelled amazing at least.
Are there some friction points? Yeah, of course. A lot of the machismo stuff can get old fast. There's also a fairly conservative religious skew that can be difficult to navigate, what with me being a pretty damn staunch lgbtq+ rights proponent. But even there, I've not run into hatred often, more the kind of cultural prejudice that's also present in us culture to begin with.
But I can say this much for sure. If the cultures and people that still live south of the us match what I've experienced here, then I consider those folks good neighbors too.