That is correct, but the majority of Yazidis are in IDP camps in Iraq. As I mentioned, about 350,000 Yazidis are in IDP camps. Only about 6,000 Yazidis are in Turkey, Greece, Lebanon and Jordan, as refugees.
On your other question, especially for the Yazidi survivors—the women who survived ISIS captivity, some of whom were in captivity for over two years and survived—now, they have to go back and live in a tent, in that camp where they don't feel safe and where they faced brutal acts by ISIS. It is also hard for them to reintegrate in such an environment, as they are not able to live in a proper home or have access to proper sanitation.