The real problem with immigration is not the migrants themselves - it is the governing authority, but more The People who select the authority, which stands in the way of migrants. The state imports migrants, en masse, for some hidden reason, commanded indirectly and legally by The People. You cannot really tell if migrants are good for the economy or not. All we can tell about migrants is that they are humans like you and I. So at the root level - migrants or natives, makes no difference whatsoever to the productivity of an economy. It's no use pointing to an alleged inferior culture of the immigrants or their specific religion. There is no way to measure this scientifically. Besides, what we can say with much more certainty, is that cultural differences pale into insignificance if you can find the strength to look into what I'm saying below, with authenticity anyway. The real problem with immigration is not the migrants themselves - it is the governing authority which work...
North Stoke Life
Sightings from a hamlet in Oxfordshire, England