Because we have been going around on the immigration merry-go-round for soooo long.The term Open Borders may not mean just geographical description. It could mean esp. with Perry, a state of mind. This means no thought for future generations or longevity to the system of creating Americans through common culture and respect for Rule of Law but rather a here and now passion for economic zone-forming placing priority on all things business, economy, jobs to an extent that sovereignty,patriotism is an outmoded passe concept.The blood spilled for America becomes a far off legend irrelevant in today’s new bilingual frontiers.