I can’t find any statistical reporting to back there being millions more undocumented immigrants coming into the country in the last 4 years. Data-backed reporting indicates that we’ve had ~11 million undocumented workers since the 2005 with little change until 2020. https://www.pewresearch.org/short-reads/2024/07/22/what-we-k...
Any chance you know where to find some more?
Look at monthly border patrol contacts with people crossing the border illegally. About 55k/mo recently with much higher numbers in 2023.