Joseph, I already posted that. However, to save you the trouble of scrolling up I will repeat it. They should be offered a generous emigration package by an international fund. According to polls the vast majority would take it. Those who stay should be offered either full citizenship on condition that they sign a loyalty oath and do national service. The rest should receive permanent residency with full personal rights (e.g. labor laws would apply to them) but no political rights.
DY, Mendelssohn also thought that denying are national aspect and would solve all our problems. The Dreyfuss case proved him wrong and the Holocaust settled it.