Can the Feds stop illegal immigration?

They did it once: OPERATION WETBACK (CLICK HERE) as outlined on Wikipedia shows that the Government of the United States once had the ability to deport illegal aliens. At the same time that Operation Wetback was underway, the government increased quotas for guest workers under the BRACERO Program (CLICK HERE). So it was able to do it before and maybe the US Government could do it again?

Or is it better to cede areas of the United States to drug cartels, human traffickers and other criminals the way the barack hussein obama regime has chosen to handle it?