SANTAIGO, Chile, May 15 (UPI) — The departure of more than 30,000 Venezuelan workers from Chile’s labor market in recent months has become an unprecedented trend that analysts say appears linked to tougher immigration policies under President José Antonio Kast and, to a greater extent, Venezuela’s political reconfiguration.

A study by the Economic Context Observatory at Diego Portales University found that the Venezuelan labor force in Chile fell 5.4% during the January-March quarter, marking five consecutive months of year-over-year declines.

Over that period, Chile’s overall labor force grew 1.1%.

“This is not an isolated phenomenon. The magnitude of the decline in the Venezuelan labor force had not been observed in previous periods,” economist Juan Bravo, director of the Economic Context Observatory and author of the study, told UPI.

Bravo said the gradual, but noticeable, return home of Venezuelans living in Chile began after the arrest of Venezuela’s president, Nicolás Maduro during a U.S. military operation Jan. 3.

“Venezuela is undergoing a transition and internal reconfiguration process, with some signs of change, but still facing high social tensions and a fragile economic situation,” he said.

With Kast taking office in March after campaigning on stricter measures against undocumented immigrants, Venezuela’s recovery process has become a more significant factor in migration patterns.

“While it is not appropriate to assume that the entire Venezuelan population in Chile will return to their country, it is also unrealistic to assume that no one will,” Bravo said.

The decline in Venezuela’s labor force is concentrated among people who have lived in Chile for fewer than five years, are age 34 or younger, male, single and hold university degrees. That group represents 80.1% of the total decrease.

Researchers warned that the reduced Venezuelan presence is directly affecting jobs in sectors that include delivery services, hospitality and customer service.

“By far, the occupation that could face the greatest labor shortage is motorcycle drivers, where 61.1% of workers are Venezuelan,” Bravo said.

He said Venezuelan workers also are heavily represented among vehicle cleaners, gas station attendants, hotel receptionists, electronics technicians and mechanics, cosmetologists and restaurant servers.

The drop in Venezuelan participation also comes as Kast’s government advances another campaign promise: the construction of a border trench aimed at stopping undocumented migration.

The so-called Border Shield Plan calls for a 37-mile trench in northern Chile along the borders with Peru and Bolivia. Authorities said in late April that 20% of the project had been completed, including an initial 7.5-mile stretch.

At the same time, Kast is seeking to restore diplomatic relations with the government of interim Venezuelan President Delcy Rodríguez to begin deporting undocumented foreigners living in Chile.

Authorities estimate that 75% of undocumented migrants in Chile are Venezuelans who cannot be deported because the lack of consular relations prevents Chilean authorities from verifying their identities and Venezuela will not accept them back.

Ernesto León, national director of migration and international police at Chile’s Investigative Police Department, or PDI, told Spanish newspaper El País that 6,000 deportations to Venezuela remain pending, while another 2,000 Venezuelans have left Chile voluntarily.