I can't really debate your other statements because it's pretty short of facts. I seriously doubt the truth of "zionism brought terrorism to the middle east" as there were e.g. massacres of Jews in the region (Hebron, or Tsfat) that predate zionism.
And sure, Lehi were terrorists, I'm not super familiar with the Bernadotte story but that's well into the conflict, not by any means that start of it.
From my perspective it was the Palestinians, through Hamas, that derailed the Oslo accords. By any measure you can choose, the Palestinian violent opposition to peace eclipsed the Israeli one. Also while Israel has a government with the ability to enforce policy, the Palestinians never had any centralized authority that talks for all of them. While Israel was putting extreme right activists in detention with no trial, the Palestinians were letting Hamas out of their jails with a "revolving door".