No one should "accept" refugees just because their neighbor decided they wanted religious purity in their state. That's being complicit in ethnic cleansing. They aren't refugees of a natural disaster.. it was deliberate expulsion. Which the UN recognized and passed a resolution affirming their right to return. By the way, the UN envoy who went to the Palestine in1948 during the first ceasefire was Folke Bernadotte, a hero of the holocaust who negotiated the release of >31,000 people from Nazi concentration camps. He concluded the 1947 partition plan was unjust and unfair to the Palestinians, the Palestinians were being expelled and refugees had a right to return, and the map pf partition needed to be changed to favor the Palestinians. For that, Yitzhak Shamir and the Stern gang assassinated him in Jerusalem.
More importantly... Palestinians and not "just Arabs".
Greece had a major financial crisis in 2010; Germany wouldn't given them loans without austerity. Couldn't Greek workers just "go to Germany" where the economy was better.. since they're both in the EU and they're "all European"?
Of course not... because they're Greek and not German. National identity and ethnicity are not the same thing, national identity and religion are not the same thing. Demanding they become synonymous is what apartheid states do.