In the days of pirates (think of the two current pirate series - Crossbones on NBC and Black Sails on Starz), “boarders” had the terrible job of crossing from one ship to another while the ships were moving and while being shot at. As the political systems are always in a state of flux the current boarders (illegals) are the fodder to be used to capture the great ship called America.
Maybe the author had a Freudian slip and was inviting the illegals in the spirit of the Price Is Right.
Even Taco Hell can spell the word right.
Excellent!!