re snip "I also have decades of business relationships, as well as close personal friendships with Mexicans - many of them undocumented..."

Subsection 1324(a)(1)(A)(iii) [snip re undocumented aka illegal aliens]
"...knowing or in reckless disregard of the fact that an alien has come to, entered, or remains in the United States in violation of law....

Criminal not civil-

https://www.justice.gov/usam/criminal-resource-manual-1907-title-8-usc-1324a-offenses
Sec. 274. [8 U.S.C. 1324]