What really cinches it is the narrator’s inflection on “raping kids.”
Second verse, same as the first. Instead of focusing on jobs and benefits, he turns the issue into a hamfisted “red scare”-era newsreel about barbarians coming to burn and/or pillage America. Those victims’ photos didn’t come from nowhere; as much as the left may pretend otherwise, gang violence is a component of having open borders. But it’s only a component, and the more he tries to inflate it the more sensationalistic and less convincing it becomes.
Even money says his next ad is about illegals importing exotic diseases.
Update: From Slublog in the comments, “He’s turned immigration reform from a serious campaign issue into what looks like a promo for Dateline NBC.”