Non-Europeans can't understand the immigration debate in Europe without recognizing a key fact: Every single migrant who enters a (Northern) European country and files an asylum claim is immediately entitled to state-funded housing, healthcare, and education, plus a monthly cash stipend and child benefit. And is automatically legally entitled to all these things indefinitely, no matter what.
If they eventually get to the point where they are employable and then turn down suitable jobs, the benefits may be reduced. But never eliminated. Since the vast majority of migrants arrive not speaking the native language, and a large percentage never learn it to proficiency, all immigrants will be welfare cases for at least 10-15 years, and many will never stop being welfare cases.
In many Western countries, including the U.S. refugees are sponsored and funded by a public-private mix of government (which does the screening), and private charities, often religious in nature, who find housing and aid in integration. This doesn't happen to anywhere near the same extent in Europe. In Europe, private charities operate on a much smaller scale, since they have essentially been frozen out by state welfare. Religious charities run by the major established churches usually have significant government involvement. As the chart above shows, Germany has a comparatively small private charity sector. It's about the OECD average, but it's worth remembering that the OECD includes a lot of countries much poorer than Germany.
So every migrant let into the country who possesses no job skills immediately begins costing the state money. And lots of migrants cost lots of money. Germany is now spending an amount on refugee welfare that exceeds its annual federal education budget. It is spending almost €3 billion per year (g) just caring for 65,000 unaccompanied minor migrants.
Denmark has similar policies to Germany's. Which brings us to Daham Al Hasan, his three wives, and his twenty children:
In Denmark these days, Daham Al Hasan is making headlines. He has twenty children with three wives, but two years ago fled alone from Syria to Denmark, and left his wives and children behind. Recently, under the Danish rules of family unification, one of his wives and eight of his children have joined him in Denmark. But Al Hasan wants all his children with him, as well as all his wives. He has been granted permission for nine additional children to join him, but as Denmark does not allow polygamy, the two remaining wives, under the same rules of family unification, are not permitted to join him. Lawyers, however, estimate that the remaining wives will also be able independently to join their children in Denmark, once they are there.
The case has caused rather a shock in Denmark, not only because of the extraordinary size of the family, and what it will cost the Danish state just in child allowance, but because Al Hassan claims that he is too ill to work or even to learn Danish. "I don't only have mental problems, but also physical problems", he says by way of explanation, "My back and my legs hurt." He has admitted that his "mental illness" consists of missing the children he voluntarily left behind. This means that he and his family live exclusively off the Danish taxpayers' money.