For people who live in "poor" countries the UK must be like some sort of nirvana.
A place where the GOVERNMENT pay you to do nothing, even pay you to have children, they may even give you a house as well.
And course people from these poor countries will do anything, lie, cheat, whatever, to get here and be part of this "money for nothing" lifestyle.
Of course most of us British are rather trusting people, and don't always realise the criminal means people will use to get here: forged passports, other forged documents, and so on.
So we are constantly taken advantage of by people who have no right to be here and are not going to make any effort to do anything when they are here.
Many of them are just criminals, coming here to see how much they can steal off us.
We are so gullible.