It means that stopping illegal immagration is a far more stronger position to campaign from than “hey, let’s halt all immagration”, which is trying to get too much from an electorate that doesnt have a good enough understanding of why limiting all immagration is a good thing right now.
an electorate that doesnt have a good enough understanding of why limiting all immagration is a good thing
The electorate fully understands the laws of supply and demand. More labor supply via immigration means lower wages. It’s a pretty simple concept.