You can go back as far as you like. Was the land stolen by the Romans? Are the Philistines of the Old Testament the Palestinians of today (it's the same word in Arabic and Hebrew.) I would suggest people pick their start point based on their politics, not the other way around. But let's take yours.
Palestine was part of the Ottoman Empire for hundreds of years, where Jews were second class citizens. That ended when the Ottomans decided to join World War I on the side of the Germans, and of course and as usual, lost. After that Jews were able to purchase land, the political leverage you refer to. The xenophobic arabs of Palestine, used to thinking in Ottoman terms, responded with massacres such as Hebron, and the Grand Mufti of Jerusalem aligned himself with Hitler, once again choosing the losing side (you see the pattern.)
In 1948 the United Nations agreed a partition that created a Jewish state with indefensible borders, the intention being that the two ethnicities would live together in peace. The Arabs immediately rejected it, declared war and lost. Modern Israel prioritises defensible borders.
Now Hamas are aligning themselves with Iran. Guess what will happen?
1. The Philistines are not the same as the Palestinians. The Philistines were from Greece and the Palestinians are from the Arab peninsula. They adopted a similar name as in Palestine/Falasteen.
2. What you say about the Ottomans is true, (although I wouldn’t say they lost every war as their empire was very wide and successful for many years). But what does this have to do with Palestine and the ongoing genocide? Are you justifying the ongoing atrocities committed by the Zionists based on what the Ottomans did? Are the Palestinians paying for the actions of the Ottomans? In fact the Palestinians are also paying for the crimes of the Europeans who persecuted the Jews for centuries.
3. You state Israel was created in order communities would live in peace. But the actions of terrorist groups like the Irgun would suggest otherwise.
4. You want to talk about massacres? Let’s talk about massacres:
Haifa Massacre 1937
- Jerusalem Massacre 1937
- Haifa Massacre 1938
- Jerusalem Massacre - 1938
- Balad al-Sheikh Massacre 1939
- Haifa Massacre 1939
- Haifa Massacre 1947
- Akka Massacre 1947
- Abbasiya Massacre 1947
- Balad al-Sheikh Massacre 1947
- Al-Khisas Massacre 1947
- Bab al-Amud Massacre 1947
- Jerusalem Massacre 1947
- Sheikh Bureik Massacre 1947
- Jaffa Massacre 1948
- Al Tantura Massacre 1948
- Deir Yasin Massacre 1948
- Al-Saraya Massacre 1948
- The Semiramis Massacre 1948
- Jerusalem Massacre - 1948
- Al-Saraya Al-Arabeya Massacre 1948
- Lydda Massacre 1948
- Ramla Massacre 1948
- Yazur Massacre 1948
- Haifa Massacre 1948
- Tabra Tulkarem Massacre 1948
- Sa'sa' Massacre 1948
- Abu Kabir Massacre 1948
- Cairo Train Massacre 1948
- Qalunya Massacre 1948
- Nasir al-Din Massacre 1948
- Tiberias Massacre 1948
- Ayn al-Zaytoun Massacre 1948
- Safed Massacre 1948
- Abu Shusha Massacre 1948
- Beit Daras Massacre 1948
- Al-Husayniyya Massacre 1948
- Khan Yunis Massacre 1956
- Kafr Qasim Massacre 1956
- Jerusalem Massacre 1967
- Sabra and Shatila Massacre 1982
- Al-Aqsa Massacre 1990
- Ibrahimi Mosque Massacre 1994
- Jenin Refugee Camp April 2002
- Gaza Massacre 2008-09
- Gaza Massacre 2012
- Gaza Massacre 2014
- Gaza Massacre 2018-19
- Gaza Massacre 2021
- Gaza Genocide 2023 ongoing