The country's government is afraid of creating incentives for migrants.
If the 65.3 million people were a single population, it would be the world's 21st largest.
The charity's report reveals the trauma children have suffered getting to Europe.
Nearly six anti-refugee protests were staged every week in Germany in 2015.
Ankara is unable to fulfil all the EU's conditions for unrestricted travel.
Alternative for Germany call for an end to Chancellor Angela Merkel's refugee-friendly policies.
Many in those countries believe their governments are doing more to help than they actually are, a survey shows.
The refugees are believed to have set off from Libya, with 41 survivors now in Greece.
The charity says the EU cannot delegate responsibility to Turkey.
International attention has shifted to the islands.
The Libya to Italy route is long and dangerous, but it may soon be the only option.
The U.N. found that some of the deported refugees were denied the chance to claim asylum.