Fatah Revolutionary Council member Salwa Hudaib said that the Oslo Accords had destroyed Jerusalem. "I say, on my own behalf and on behalf of the Fatah movement, that we are not bound by the Oslo Accords, because these accords no longer exist on the ground," she declared, speaking on the Palestinian Authority's Alfalstiniah TV channel on September 16. "Our leaders were tricked into signing some of the articles," she said, adding that Israel "is known for its deception, its treachery" and "regularly avoids implementing agreements."
Interviewer: "Has the Palestinian leadership ever officially declared that it is no longer bound by the Oslo Accords?"
Salwa Hudaib: "The Vienna Convention stipulates that if any party breaches an agreement, that agreement becomes null and void. Israel did not implement the agreement within five years, and it continued its activities of settlement, of Judaization, of deportation, killings, and oppression, and only intensified its occupation and settlements, and therefore, we are not bound by the Oslo Accords. President Abu Mazen [Mahmoud Abbas] has not declared this officially, except for when he said, during the [2017] Al-Aqsa Uprising, that we were halting the [security] coordination and all bilateral relations with the Israelis. This started on July 14th, 2017, and it continues to this day. In addition, the popular resistance has intensified. So we are not bound by the Oslo Accords. I say, on my own behalf and on behalf of the Fatah movement, that we are not bound by the Oslo Accords, because these accords no longer exist on the ground."
The Oslo Accords created the Palestinian Authority. it is what gave the Palestinians self-rule over Areas A and B.
So if they say it is abrogated, then Israel has every legal right to take over the entire West Bank again, and control it legally under international law, since there is no Palestinian legal entity.