As someone else complained beforehand: the public health system is already strained, the influx of illegals, refugees and other immigrants didn't help the situation - what where people expecting?
You sure about that? For example, there's nothing better for a country like Germany to have an inmigrant who has:
- got a bacherlo/masters degree in a different country other than Germany
- has a job in a German company and earns well above the average German citizen
- pays tons of taxes
- is relatively young (between 20 and 50 years old), so doesn't get to use the health care as much as others
Besides, European countries are getting old (the 'population pyramid' is getting inverted) so they definitely need young people that work (and it doesn't even really matter if they are skilled people or not; what's needed is people in the age of working and who can spend some of their earnings in the country)
On the contrary, that is _precisely_ what Germany needs if you are to sustain the bloated bureaucracy and the pensions.
As another comment pointed out, the best kind of immigrant is the one who pays really high taxes and social contributions and doesn't use up any benefits. That means young people with no families in high paying jobs. They don't get sick, don't use the kitas/schools, don't need to get paid kindergeld (money that parents get per child), are not married so have much higher taxable income (on average, because of Ehegattensplitting), pay into the pension system from which they will almost certainly get back far less (if at all) than what they pay in, usually live in big cities so they don't drive and therefore have significantly less impact on marginal infrastructure costs and drive up demand and pay into the local services economy.
Also, if it is difficult for such immigrants to assimilate and naturalize, they will often just pack up and leave, having contributed to (but never using) the various social systems.