Life is more vital than the nebulous quality of life you refer to. Better to be alive with a poorer quality of life than to be dead from war or terror.
Yes, over 3,700 terror victims since Zionism. But you conveniently omit the far more serious figure of over 20,000 war dead (in addition to over 75,000 wounded from that period – all excluding wounded survivors and of terror) just between 1948 and 1997. Plus all the more from the wars since ’97. Nearly 100,000 disabled Jewish men from the wars.
Which other comparable time period in pre-zionist Palestine, or in Arab countries, did you have over 25,000 Jewish dead and over 100,000 Jewush wounded? Answer: None. Zionist Israel is one of the deadliest periods in Jewish history.