@laura2019mom I think the advantage you seek is more in the cultural diversity he would bring to the campus. That is, most schools I am familiar enough to talk about do not have any # for Hispanic or Latino applicants. But they do highly value the cultural diversity than ANY kid could really bring. I know that around here (Midwest), the greatest number of those who are Hispanic/Latino are from Puerto Rico, Cuba or Central America, but not Mexico. Forgive my being presumptuous, but are you of Mexican descent? As that would be unusual around here, and if an applicant can show how he would bring his culture with him to campus, it would make him stand out. I am not suggesting he be ALL about his ethnicity, but perhaps share how his background and culture gives him a different way of approaching things in his essays.
Where I live there are SO few Hispanic/Latino applicants that any college which tries to seek them regularly will get frustrated really fast! So I do think your son can bring something to them which they will find unique and a real add to their campuses. Good luck!