Top Bunk Tester.
"Overly generous benefits package?"
What??
Have you not been listening to the news of late. Political parties of ALL persuasions have been falling over themselves to limit/qualify/restrain/cut benefits of all kinds for the last 18 months. This lot are no exception and if you think that UK benefits are 'overly generous' then you are obviously not trying to live off them!
I suggest that the reason the UK is so popular is that it has a growing and expanding economy and oodles of openings for folk at the bottom of the income/qualifications pile.
There is a substantial skills shortage in the UK, we don't have enough folk to do the skilled jobs, let alone the rather more unpleasant unskilled menial jobs.
THAT'S why they want to come here.