When you just open the floodgates, you let in the sewage with the water.
The government needs to do the job of filtering out the sewage.
The government needs to close the valve and enforce the border with military force. We don't NEED any extra labor. That's pure malarkey.
When they say they need more labor, what they really mean is that they want people to work at third-world wages, under the table, with a wink and a nudge from government. All while they deport skilled manufacturing jobs to third world countries like China.