because US is in rabbit decline and can soon no longer keep its aggressive militant client state save in the middle east and no other state will be there to take over as its protector. And current Israeli land lacks resources to sustain population growth. Jewish money would be better spent buying up continuous resource rich land in US these days than in hasbara and fighting for Israels current location. It might although be a good idea to spend some money in softening up the Palestinian public opinion in order to make the middle east habitable for the jewish population who chooses to stay behind in the multi religious/ethnic state that is inevitably going to come into existence in the middle east in the future.
UN: Gaza could be 'uninhabitable' by 2020 if trends continue (AP)
from the article: Until Israel and Hamas meet again