https://www.businessinsider.com/us-population-decline-worker-shortage-labor-birth-rates-immigration-economy-2023-5

Take Utica, New York. The city's population declined from 100,410 people in 1960 to just over 60,500 in 2000. But instead of facing extinction, the postindustrial city's population slowly began rebounding in the 1990s with the arrival of Bosnian immigrants fleeing the Yugoslav Wars, who were followed by refugees from Myanmar in the 2000s and, more recently, Bantu refugees from Somalia. The city's relatively low cost of living has made it a hub for people fleeing conflicts around the world, who resettle with the help of refugee-aid organizations. Though the city's population still hovers around 60,000, it would be much lower if not for the resettled refugees and their families who now make up about 25% of Utica's population.

"The refugee population has helped the city's economy tremendously," Brian Thomas, the commissioner of Utica's Department of Urban and Economic Development, told CNBC.

Well, this explains why America wants a war with Mexico.