The two illegal immigrants I’ve known personally are both visa overstays.
One is Canadian. He’s been here for about 20 years. He can’t go home to see his family because he wouldn’t be able to return easily. He came as a tourist, met a pretty girl, and stayed. He works under the table jobs.
The other is a british girl. She was girlfriend of a friend of mine. She came on a visit, and stayed… she got nanny jobs (under the table) till she cobbled together enough fake documentation. She’d been in the country 5 years when I met her.
I’ve read that most of the “illegals” are not migrant workers from the southern border, but are actually visa overstays – many white, english speaking, etc. But there isn’t the racist reaction to Canadians and Brits.