Not everyone really cares all that much about the existence of Israel. Lets be clear here - we are talking about the potential end of Israel as the current political entity. I personally would welcome the end of that, particularly as the BBC and UK politics would then be free of the bloody Israel lobby. For most people, the fate of Israel carries about the same weight as the fate of Peru. Might be a bit callous, but really - not many people (beyond those paid to) care at all.
Law expanding definition of terrorist activity passes first Knesset reading (Haaretz)