They tried this is Germany and other European countries as well, using the 'guest worker' myth. In reality, they were low-skilled immigrant labor who contributed only marginally and through the largesse of 'good boy politicians' back then, were included into social security schemes, allowing them to gain access to pensions and unemployment benefits, with predictable results. This eventually opened the floodgates to large cohorts of immigrants who contributed nothing and were only immigrating for the social benefits.