Every inch of territory in Israel is like a city on the border; it is vital for her security. Giving it away to the Arabs exposes all her inhabitants to the possibility of attack.
The Code of Jewish Law (Shulchan Aruch, Orach Chaim 329:6) states:
When there is a [Jewish] city close to the border, then, even if [enemies mount an attack, although they] come only for the purpose of [taking] straw and stubble, we should [take up arms] and desecrate the Sabbath because of them. For [if we do not prevent their coming] they may conquer the city, and from there the [rest of the] land will be easy for them to conquer.
What is the law saying? That even when an enemy attack does not pose an immediate danger to life, since allowing them control of a border city puts the entire land in danger, we should take up arms to prevent that danger from arising.
This is precisely the situation in Israel today. Every inch of territory in Israel is like a city on the border; it is vital for her security. Giving it away to the Arabs exposes all her inhabitants to the possibility of attack.
This is why so many Jewish leaders are saying that not one inch of land should be returned. This reason is unconnected with the holiness of the land or the fact that they love it.
Yes, the land is holy, and yes, there are people who love it, but the reason the land should not be returned is not this holiness or this love. Instead, this is a life-threatening issue; the lives of millions of our people are at stake. To sum it up: Security provisions should never be sacrificed in order to achieve what appears as diplomatic success.