I fear a lot of these migrants have been sold a lie. They often give up their jobs and leave their families, spending thousands on heading North to the EU, only to find it's not the land of plenty they were told it was.
Plus it's cold and dark in the winter. Do they even know about vitamin D? That's not going to help their mood.
Great business for the traffickers though.
Great for the new slave owners, putting them to work.
Great for the fiat economy, I guess.