בס''ד
I see some people here are saying that support for Oslo was a mere "mistake" that can be forgiven. I disagree. When your actions result in mass murder, that cannot be forgiven because there is no way to bring the dead people back to life in this world. There is no correction for that crime - what we call "kapara" in Judaism. When someone does wrong, the Torah demands not just regret but "kapara" - eliminating the negative consequences of one's actions. For murder, there is no "kapara" in this world.
If HaRav Ovadia had ruled against Oslo, the tragic results might have been prevented. Instead, Shas actively supported the Rabin-Peresite regime of treason. Sacred Jewish land was surrendered to the Nazis of our generation - a chillul Hashem so horrific that I do not believe that there is kapara for this act.
Some are also saying that many Sephardic Jews were brought back to Judaism by HaRav Ovadia and Shas. I strongly disagree. First of all, for every Jew who was brought back, several other Jews were turned off by seeing "rabbis" like Aryeh Deri yimach shmo engaging in extortion, racketeering, bribery and the most heinous forms of public corruption. Deri was placed in charge of Shas by HaRav Ovadia.
Here is a Hebrew video that we did showing Uri Avneri yimach shmo saying that "Deri was even more extreme than I am". Avneri has called for the destruction of the state of Israel and offered to serve as a "human shield" to guard his friend Yasser Arafat. Deri and Avneri worked together for years.
HaRav Ovadia's wife and other family members support the "Geneva initiative" of Yossi Beilin yimach shmo in which Israel goes back to the suicidal pre-1967 borders and then even within those borders allows Arabs to come flooding into the tiny Jewish state. In the following Hebrew video, we have Nadia Matar from "Women in Green" exposing the treason of Harav Ovadia's extreme left-wing wife:
BTW what Uri Avneri says in the first video is that in order to get Sephardim to support Israeli suicide, the extreme left needed a Sephardic Jew like Deri. That is what Shas did to the Sephardim - they were once overwhelmingly right-wing but many have been convinced by HaRav Ovadia that we can surrender Jewish land. This is the "Judaism" that Shas preaches to the Sephardim - "Judaism" that believes in national suicide and cowardice.