Anyone who buys a ticket to a cinema can enter whether it be in a Latin neighborhood or any other neighborhood. Most retail stores in the southwestern states have a small section devoted to Latin DVDs, but that is not true everywhere. The titles stocked by retail stores are mostly the popular, general-purpose DVDs. For collectible films, like Ismail Rodriguez's Pancho Villa trilogy, you have to use the internet.
No other country tells the story of the Mexican revolution better than the Mexicans, and these are superior films by any standard. But if you don't like Mexican films don't buy them. I do. I have not seen Rodriguez's Pancho Villa trilogy sold in retail stores. They are Mexican DVDs sold in Mexico and on the internet.
They are nothing like spaghetti westerns, so if that is the limit of your interest, don't buy them.
Ismael Rodriquez was one of the most prolific filmmakers in the history of cinema. He was an artist of considerable talent who made many fine, important, and major films as well his fair share of commercial bread-and-butter B-films. His films are also better preserved than most Mexican films.