Within that specific ethnic group there are several national backgrounds. Even the word "pana" itself, which is like "bro" is not used by all the different subgroups of latinos(some might say compa, parce, chero, etc). I like the name because it's easy to say and sounds like "pan-american." I just think you have to start somewhere. Where I've lived there seem to be just as many South Asian and East African immigrants as latinos.