The Mexican economy may completely collapse now that Cantarell has peaked and the nationalized Mexican oil business is no longer going to be able to fund the Mexican government and its large subsidies in the costs of basic foodstuffs in Mexico. If Mexico is no longer able to feed a its people, A "Mariel style" mass flood of immigrants from Mexico to the U.S. might occur.
Tens of thousands of people fled to the US to escape the terrible economic conditions in Cuba during Mariel....then Castro emptied his prisons and his mental hospitals and sent them along as well. We might get a flood of millions in a very short period of time from a collapsing Mexico.
The Mariel boatlift was a mass movement of Cubans who departed from Cuba's Mariel Harbor to the United States between April 15 and October 31, 1980.
The boatlift was precipitated by a sharp downturn in the Cuban economy, leading to simmering internal tensions on the island and a bid by up to 10,000 Cubans to gain asylum in the Peruvian embassy.
The Cuban government subsequently announced that anyone who wanted to leave could do so, and an impromptu exodus organized by Cuban-Americans with the agreement of Cuban President Fidel Castro was underway. The boatlift began to have negative political implications for U.S. President Jimmy Carter when it was discovered that a number of the exiles had been released from Cuban jails and mental health facilities. The exodus was ended by mutual agreement between the two governments in Oct 1980. By that time up to 125,000 people had made the journey to Florida.