Answer:
Dysfunction of the stricter control.
Step-by-step explanation:
One of the goals of stricter control of the border between the United States and Mexico was to increase its security and ultimately the security of the American people. Meanwhile, developments of various nature often have both manifest functions (conscious and intentional), latent functions (unconscious but beneficial), and dysfunctions.
Dysfunctions are unconscious, unintentional and harmful. The authorities did not intend to increase the number of illegal immigrants who decided to stay in the U.S. permanently or semi-permanently. Meanwhile, it came as a result of initial efforts nevertheless. At the same time, it is debatable how harmful this dysfunction will prove itself to be.