A process aided by generous social security benefits for those who prefer to sit on their arses at the taxpayer's expense.
Same situation in Australia.

Despite tens of thousands being unemployed, overseas fruit-pickers have to be asked to come and do the job. Meanwhile, the lazy locals collect their monthly cheque from the government.

I never bothered about where the guys in the bars came from - the more variety the better. But the language barrier was often a bit of a problem.