When it comes to the current laws driving illegal immigration, I meant people overstaying visas, fake marriages, jobs and courses, a lot of which is driven by desperation and doesn't need to be illegal, it's the too-tight regulations that make it so. Not that you could tighten up the rules on study visas any more than the govt already has, so tight it's strangling HE.
I absolutely did NOT mean people risking their lives on small boats, people who are trafficked to the UK, or other asylum seekers. Some right-wing rhetoric considers them illegal but most of the time even the govt doesn't.