They mean the same thing I was suggesting. Illegal immigration is a symptom of a problem. Immigration is too difficult, but we so heavily rely on immigrant labour that we allow it to continue.

Most undocumented immigrants are here for work. If we change the immigration system to give them work visas, the problem mostly goes away. Some of them don't want to stay here permanently, and not even for the entire year. They come seasonally. Others would like to stay permanently, and offering them a legal path to citizenship is likely a good idea.

I think it's not possible to end all illegal immigration instantly, but the vast majority is easily within our reach.

It's worth noting that asylum seekers are not illegal immigrants, and the way the current administration handles the situation itself it what's illegal.