Clearly an issue with immigration enforcement.
No doubt that and there were naysayers among the Anasazi who said the funny looking guys with beards and robes who wanted them to bow 5 times a day were peaceful ~ and only wanted to build a mosque ~ not a victory monument, and then the big crunch started and next thing you know there were 18million bone fragments ~ and still there were those who were unconvinced and demanded we let them build their mosque ~ that they were peaceful.