You opened with: the Second Intifada was sparked by Israeli massacres. Now your alleged massacre is Sept 29, the first day of the clashes after Sharon’s visit. That is not a prior massacre that precipitated anything, it is the opening confrontation itself, and you are laundering it with a loaded word.
On Oslo, you did not even mention it until your massacre story fell apart. And your Oslo summary is wrong on the text. Oslo II explicitly defers permanent-status issues (Jerusalem, settlements, borders, refugees, etc.) and excludes them from PA jurisdiction. The 18-month line is about phased interim jurisdiction, not a guaranteed state or full withdrawal. This was also obvious to everyone alive at the time and was widely reported. It's only now that people like you are attempting to rewrite history. https://www.peaceagreements.org/agreements/410/
Read the Mitchell Report you keep invoking.
- It describes Sept 29 as large demonstrations where Palestinians threw stones and Israeli police used rubber-coated bullets and live ammunition, killing 4 and injuring about 200. Calling that a massacre is absurd. It was an armed clash, premeditated and planned by the palestinians, so not only was there no massacre, but the Palestinians themselves say armed clash was premeditated and Sharon's visit was just a pretext.
- The Sharon visit did not cause the Al-Aqsa Intifada.
Source: https://www.palquest.org/en/historictext/13561/mitchell-repo...
Also, Sharon visiting a holy site under police protection is not violence. Mitchell even says holy places must be accessible to all believers. The choice to turn that into an uprising was a choice.