the democrats actually do that, they want open borders so the enterpreneurs have a chance of creating companies, jobs, getting mexicans as employees etc.
republicans on the other hand want to end the blight that the security forces neverendingly suffer on.
in the end the success of the united states is a mixture of both,
the blight/sacrifices that security forces give away every day makes it possible in the first place for the enterpreneuers to enrich themselves with those immigrants.