Illegal Immigration is certainly a serious, complex issue. Links:

Illegal Immigration Gets Less Attention When It Falls, Aug 1, 2023
"Border Patrol encounters at the Southwest border declined by 55% between December 2022 and June 2023... 'More than 7.3 million Venezuelans have left their country, making them the biggest refugee group, ahead of Ukrainians and Syrians who fled their war-torn homelands'... Experts on Latin America say it is a mistake to assume immigration enforcement policies can override the human instinct of individuals living in untenable circumstances to leave their countries and seek a better life."
forbes.com - Illegal immigration gets less attention when it falls

chart showing Unauthorized immigrant population was about 11.5 million between 2006 and 2018
usafacts.org - Unauthorized immigrant population

New York City public hospitals overwhelmed by increase of migrants, Oct. 2, 2023
"Officials say there were over 200,000 illegal crossings at the southern border last month and a record three million migrants that crossed over the last year. The increase is putting a strain on cities and health care systems."
nbcnews.com - New york city public hospitals overwhelmed by increase of migrants

Illegal crossings on the US-Mexico border rose in July but were still down from last year, August 18, 2023
"President Joe Biden's administration insisted that its carrot-and-stick approach of expanding legal routes while imposing more punitive measures on those who enter illegally is working. It noted that illegal crossings were still down 27% from July 2022 and were well below the days that preceded the new immigrations rules."
apnews.com - Biden border crossings immigration asylum

What's happening at the U.S.-Mexico border in 7 charts, November 9, 2021
"The Border Patrol reported 1,659,206 encounters with migrants at the U.S.-Mexico border last fiscal year, narrowly exceeding the prior highs of 1,643,679 in 2000 and 1,615,844 in 1986."
pewresearch.org - Whats happening at the u s mexico border in charts