These idiots are, well, idiots! They're just sending the same old message: If you come, we will let you stay.
Nay, Nay! They cannot stay! Illegal aliens must go away!
From the story, "Illegal immigration rises for third straight month despite Trump crackdown", here:
Total arrests along the U.S.-Mexico border topped 40,000 last month, according to the [DHS], which is used as a benchmark for understanding the level of illegal immigration occurring at the border. ... The crackdown has seemed to have little effect on the overall numbers of immigrants crossing the U.S.-Mexico border illegally, as the arrest numbers have been steadily climbing since January, though some of the rise can be attributed to regular seasonal workers.