The tit-for-tat in the Palestine and the Levant did not start with Gaza or even with the founding of modern Israel on the back of Zionist terrorism.
If you traced the history of the region back 3,000 years, you'd see that the tribes living there had always been warring against each other, taking turns to establish a temporary majority before being persecuted or exiled or massacred - Babylonians, Phoenicians, Persians, Hebrew-speaking tribes, Romans, Christians, Muslims, back to Christians after the Crusaders invaded and so on. British Palestine had a majority of Arab Christians, not Muslims.
The same souls have been reincarnating over and over again into different tribes in the region, down the centuries, fighting this endless war of retribution and revenge. The rest of the world should leave them be and let them annihilate each other, or until these peoples come to their senses and choose peace.