This morning, NPR's Morning Edition included a story, "As Demographics Shift, Kids' Books Stay Stubbornly White," about the difficulty of finding books depicting children of color. Good to see that the topic we've been discussing within the children's book world may be going more mainstream.
As I commented in response to the story, there's a simple solution: Anyone who is concerned should go to the bookstore, find a beautiful book about a child of color, and buy it!
Then keep going back and buying, or asking the bookseller for, more books featuring diverse children.
For hard-to-find books featuring Latino/a kids, see ¡Imagínense Libros! - "a virtual evaluation collection of Latino children’s and young adult literature designed to help librarians, educators, and parents choose high-quality books authentically representing the Latino cultures."