Prosperous is not the right word because it gives the impression that they work for a living when millions of Palestinians have United Nations Refugee Cards (the war ended in 1948, so only a few are personally refugees, the rest are descendants) and they dont have to work. Their status grants them lifetime free food, free housing, free education in the best universities, free medical care, etc. Being defenseless refugees, they are “a protected species” and the international community takes care that no collective punishment is applied to them. Since about 250,000 new refugees are being born each year, the population is growing at humanity’s fastest rate. The USA pays the bills now for sixty years and objectively it is like the USA is breeding them.