Good you have the FACTS in hand.
Israel has a history of being attacked by neighbors and others who hate the Jewish people. That faction of folks is large and determined to make everything that Israel does wrong. If Israel were to let it's guard down, it would be attacked by those people. It is not paranoia or without merit.
However, long term peace can never be accomplished without compromise and diplomacy. Diplomacy can only reduce risks. It will never eliminate risk, any more than military action will do the same. The problem becomes much more difficult for Israel when constructive compromises are so readily dismissed and civilians die as a result. Over time, those who want Israel to be safe begin to see their actions as not rational or sane, but acute paranoia where the response is often without merit.