Terrorism does not respect race or religion.
When you use terrorist means to eliminate a group of people you label 'terrorists', it makes you a terrorist as well.
Anyway, terrorism was started in the Middle East by the Zionist Irgun and their ilk in the lead-up to the founding of Israel. The real reason why this tit-for-tat terrorism has continued unabated since is because Israel has consistently denied the Palestines their homeland, and thwarted every attempt at a 2-state solution.