If American’s and their “leaders” could face facts the influx would be named for what it is: A CONQUEST OF THE UNITED STATES BY MEXICO. For an historical example see the late Roman Emprie and its initial allowance of the Goth’s into its territory as “we only want to farm.”
This is all about trying to save the entitlement state. Our leaders realize that the entitlement state requires more and more young working people to keep the pozi scheme going. Since native American are not having dozens of babies our leaders decided to throw open the borders to keep the population growing. That in a nut shell is why we have open borders.
However things are not working out like the idiots in gov hoped. Instead of young workers (and there are some of those) we are being colonized by Mexico. And Mexico is dumping it's undesirables on the US.