Sure, America is awesome, but the country lets in a lot of immigrants through nice legal channels, right? Why don't these Mexicans just try it that way? Well, having gone through immigration myself in 2009 (the legal way), I can tell you right now there's a reason.
Some people have managed to turn the sentence 'Here's a neat trick that will amuse your family and friends' into 'Here's a way to pretend you have God-like powers and convince crowds of credulous and needy people to give you their money.' And now you can too.
Media piracy has been rampant throughout history... probably since the first guy to smear his feces on the wall in the shape of a buffalo turned around and immediately saw 50 more just like it being smeared on the walls behind him.