Perhaps because there is already 2 million of them in Turkey? Where is the proof anywhere that migration leads to an uncivilized society?
There are many other safe countries between Syria and Germany (Romania, Macedonia, Greece, Bulgaria, Serbia, Bosnia, Croatia, Hungary, Austria), why would they not simply head for the nearest safe country?
Perhaps you can explain how already overstretched public services can cope with yet more people? In the UK, for example, we are already short of housing, the NHS is in crisis, education is struggling...how would we cope with yet more people and who would pay for them all?
They pay for themselves, most of them are younger and thus work and contribute to the economy. What would we do without foreign doctors?
As for your other question this is a good read -
http://www.theguardian.com/world/2014/oct/21/ten-myths-migration-europe‘Basic services such as hospitals and schools collapse’
This is one of the arguments that people who are hostile to immigrants take refuge in. If they come to Europe as citizens with rights, won’t they end up abusing our most valuable benefit, the welfare state?
“There hasn’t been any study showing this link between immigration and the abuse of social services,” says Sergio Carrera, a researcher at the Centre for European Policy Studies, one of the most influential thinktanks in Europe.
Some experts have tried to take the complex task on, of calculating the difference of what immigrants bring to public budgets and what they consume. A recent study by the Migration Policy Centre, using figures from the Organisation for Economic Cooperation and Development, shows that foreigners are net contributors (they add more to the state than they spend), across almost the whole continent, apart from in seven countries (with Spain among them).
Still, surveys in Spain show that immigrants are net contributors for health; they get ill less frequently because they tend to be younger and have a more urgent need to be fit for work than the native population.
El País