The reality is that Israel can do nothing until it negotiates legitimate borders for itself which allows a free and completely independent Palestinian State to exist on what remains of Palestine. Only then can Israel negotiate such a swap and such a swap can only ever be optional. Israel cannot force such a swap now or then and if it tried there would be bloodshed with international outrage forcing a one state solution and more than six million Palestinian refugees waiting to return to their homeland. It is all racist hot air and is not only unwise it is stupid.
Police arrest 18-year-old Palestinian suspected in Old City stabbing (Haaretz)
from the article: Coldly considering the unthinkable