as you say 'some'. Not 800,000, nothing like it. As I say,wikipedia apart, my post quoted eminent Mizrahi jews who know well enough.*They* themselves do not wish to be regarded as refugees despite your insistence. In addition, please do not exclude the complicity of Israel in some Arab nations in encouraging the exodus. I will presume you know what I speak of. The real point though is that the Palestinian exodus is NOT analogous to the *mostly* willing exodus from Arab lands.
ISIS kills 22 in Yemen's Sanaa, Aden; targets both gov't and Houthi rebels (Reuters)
from the article: Comment / Settlers can stay, but only as citizens of Palestine