Check out the first chart in this link. Notice how illegal immigration dropped after Bill Clintonnwent gung Ho on charging employers. Bill holds the record for prosecutions.
Then in 2001 W ends all prosecutions and illegal crossings take off as if jet propelled.
Obama takes office in 2009 and begins prosecuting employers and by 2017, when Trump takes over illegal crossings are at lowest level in 50 years.
Trump stopped all prosecutions and by 2019 illegal crosding spiked again spiked and a national emergency declared.
www.pewresearch.org
If they can’t find jobs when they get to your country, they’re not going.