Imagine you were not born with the luck to be British (or any other Western country), and instead you were born in Somalia, Iraq or some other country where it is nigh-on impossible to get a job to feed your family (or maybe you're 18 years old and ambitious in life and see all around you falling apart). What do you do? Perhaps you married young and have a few kids too (because that is what people do where you come from). The kids are going without meals, your wife is sick from something you don't know (can't afford a doctor to find out). What do you do with life? Give up?
Personally I would look how I could build a life for me and my family. I would do all it takes to get there. This is why 99% of those people are trying to get into UK Ltd.
So FFS guys, grow up and see that the fault is not with those trying to get into the UK. Rather, the fault is with the system. Who is to blame? Well things didn't get this way overnight and I recall immigrant camps being reported near Calais years ago, but the last Labour government certainly has a lot to answer for. The current Liberals in coalition in government have ensured that the Conservatives are not able to make the changes they really want.
Blame the system, not the people.