There is a bunch of great latina pornstars. I’m not sure if a reason is that the capital of the porn industry is in southern California which has a very high population of Mexican girls. Also Miami has a ton of porn creation going on and that city is over run by south American babes. So these two factors combined probably make it more likely that they get in the business just by the sheer convenience of locale. But the biggest reason is probably the fact that there are so many hot girls so it makes it more likely that there will be a ton of pornstars.