I would think that an extremely established giant like Walmart cannot pretend that they cannot screen for illegals effectively. A far cry from a mom ‘n’ pop construction operation competing against a dozen others.
Trump insisted this morning that they had to get the thugs first, before taking care of the ag, leisure and hotel industries. And my guess is that the workplace raids we see are because there is a bad hombre there, then some other illegals get scooped up at the same time.
8 USC Sec 1324
(A)Any person who, during any 12-month period, knowingly hires for employment at least 10 individuals with actual knowledge that the individuals are aliens described in subparagraph (B) shall be fined under title 18 or imprisoned for not more than 5 years, or both.
(B)An alien described in this subparagraph is an alien who—(i)is an unauthorized alien (as defined in section 1324a(h)(3) of this title), and
(ii)has been brought into the United States in violation of this subsection.
https://www.uscis.gov/alienregistration
It is more than 99% accurate.
Not screening the numbers is a deliberate act of fraud for a major corporation.