Earlier quoted context omitted.
Where does this 5 million number come from? [0] estimates that the net change in illegal immigrant population in the U.S. since 2019 is close to 0. [0]: https://cis.org/Report/Estimating-Illegal-Immigrant-Populati...
https://www.cbp.gov/newsroom/stats/cbp-enforcement-statistic... Note that's just "enforcement actions," which nowadays largely means giving them a court date and letting them go. It doesn't count anyone who snuck in successfully. Here's another link: https://www.nbcnews.com/politics/immigration/migrant-border-...
"Inadmissibles refers to individuals encountered at ports of entry who are seeking lawful admission into the United States but are determined to be inadmissible, individuals presenting themselves to seek humanitarian protection under our laws, and individuals who withdraw an application for admission and return to their countries of origin within a short timeframe."
It's not totally clear, but it seems that it also includes other "border enforcement" actions that are not necessarily related to immigration at all, e.g. intellectual property and drug seizures.
So it has nothing to do with what you were claiming.