The fact is that in every negotiation, with Arab nations or with the so called Palestinians, Israel has offered to give up land for peace, and have followed through in good faith when It found a credible partner for peace.
Egypt
Sadat was a better politician than he was a general, and when he did attack in 1973, he was soundly defeated. Israel broke through the anti aircraft barrier the Russians had constructed for Egypt, captured 500 Soviet tanks and tons of ammunition and Israeli tanks were rolling toward Alexandria and Cairo and were only stopped by pressure from the US. The few Egyptian troops left in Sinai could have been destroyed at any time, but under pressure from the US Israel allowed them to remain while occupying significant Egyptian territory across the Canal in order to leave the door open for peace talks. Was Sinai sovereign Egyptian territory? In modern times Sinai was not a part of Egypt until the British attached it their Egyptian colony in 1906 to better secure the Canal. That being the case, it is not at all clear that Egypt had a better right to it than Israel. Nevertheless, Israel was always serious about peace and security and gave up Sinai despite all the pain it caused to secure peace.
Jordan
Before 1948, Jordan was known as Trans Jordan, meaning across the Jordan River, and held no land west of the river, however, in a war of aggression in 1948 Jordan captured Judea and Samaria and held it from 1948 to 1967 despite having no legal right to it. Only Pakistan and the UK recognized Jordan's right to the land, so Jordan had no legitimate claim on the land when negotiating peace with Israel, but again, Israel was so determined to make peace with the Arabs that it agreed to allow Jordan to keep title to some of the land adjacent to the river that it had developed during its illegal occupation of the land. That's how serious Israel was about making peace.
Oslo
While it is true that both Israelis and Palestinians supported Oslo at first, at the end, when Barak offered all of Gaza, 93% of Judea and Samaria, PA jurisdiction over Arab neighborhoods in Jerusalem and Arafat said, no, Israelis still supported the peace process, but the Palestinians turned to violence and launched the second intifada, and it was the intifada that convinced Israelis that it as impossible to negotiate peace with people who turned to violence whenever they don't get everything they want. Israel was very serious about peace with the Palestinians and was willing to make great sacrifices to secure it, but the Palestinians were clearly not serious about peace since they were unwilling to make any compromises to secure it.
Gaza
Sharon gave Gaza to the PA with the understanding that Abbas would maintain peace there, but despite the PA forces outnumbering Hamas and the other terrorists, the PA quickly lost Gaza to Hamas and there was no peace. This was the final nail in the coffin of a negotiated peace between Israel and the Palestinians since it showed that there was no political entity among the Palestinians that could credibly offer peace to Israel.
Chest thumping about how the Israelis defeated the Egyptians in 1973 acknowledged but it didn't alter the fact that Israel " gave back " only sovereign Egyptian territory , like I said.
Same with Jordan. Like I said
Oslo never even offered the Palestinians an end to illegal Israeli settlement building , that's how " serious " it was. It saw the PA being subcontracted in to assist in the subjugation of their own people. I could offer you 80% of Algeria and it would be entirely desert. Percentages should be viewed in terms of value . The percentage Israel allowed istelf to keep was virtually all of the illegal settlement/settlers and control over the water supply.
If Gaza was "given" to the Palestinians you would think that that would mean they could vote into power any one of their political parties ? I mean without the Israelis , US UK etc etc instigating an attempted coup ? That alone is indicative that Gaza was never " given " to the Palestnians
Could control their airspace , economy , borders , coast etc etc
The Gaza disengagement was a pragmatic decision to remove the illegal settlers from there and release the thousands of IDF troops guarding them and move them to illegal settlements in the WB and Golan and, if we are to believe the likes of Dov Weisglass , to " freeze " the peace process
Either way nothing of what you wrote above undermines what it is attempting to do