You read the words, but didn't understand. I clearly said that traditional [English-language] sci-fi projects INTO ITS IMAGINING OF THE FUTURE the invisibility / marginalization of Mexican and Mexican Americans in present (which is due to the overwhelming presence of whiteness as the default humanity in books and film created under existing capitalism, since publishers and producers assume that white folks are their primary customers).

I hope that's clearer for you ... THOUGH, since you say "nobody gets published unless their story is a good story"—a complete falsehood that implies that Mexican Americans aren't getting published because our work sucks—I don't hold out much hope for your getting past your own limited understanding of the world to grasp what I'm trying to put across.