Yes, that is the main point I took from the 370 pages in the book namely that labour market demand is the driver of legal and illegal immigration. (Myth 2: Borders are beyond control.) People come to work rather than commit crime. (Myth 12: Immigration sends crime rates soaring.)
Using 2004 figures he makes the point there are six times more people involved in border enforcement than worksite enforcement. Prosecutions and fines are low. Jail time for employers of illegal immigrants is rare.
(How Migration Really Works: the facts about the most divisive issue in politics, Hein de Haas, Basic Books, Hachette, 2023)