Most came within the last 350 years from Syria or Egypt.
Most of the Jews came since 1945
despite Gaza being one of the most Jewish lands [historically] in the region.
History cannot prove possession. If we go back far enough then we all own Africa! The Vikings own half of England and The Native Americans own America.
The fact which you seem unable to accept is that being BORN in a place gives one a natural right to live there with all the rights of everyone else (ie equality)
Furthermore there needs to be equality of opportunity or else there will be justifiable unhappiness and even violence against this oppression which will be supported by that community in the name of freedom.
You seem unwilling to accept these very simple truths and all too often descend into trying to prove issues with history. This devalues what you have to say.
The reason why so many people compare the Israelis attitude to the Nazis, is that they feel that only this comparison might finally show the Israelis that to us they are committing the same mistake as they did. To discriminate against a group simply because of their differencies and using them as a scapegoat for everything that goes wrong; thus justifying actions which go against basic human decency.
To us we see the conflict through the lens of the media like anyone, but it looks like the Gaza Strip has been turned into a huge prison because the people there seem not to have any freedom, the stories coming from there are terrible and though you seem to easily dismiss them as some kind of anti-Israelis plot, we are not so sure.
We acknowledge that trying to use rocket attacks against the Israelis gated communities is a bad thing, any violence is! However, one cannot help but wonder if these are the actions of an oppressed majority, oppressed by the superior firepower of the Israelis. The same can be said about suicide bombers. These are acts of desperation!
To us, we cannot but notice that the Jews have set up "A Jewish State of Israel", which thus by definition seems to be distinctly NON secular, and thus discriminatory against other religions, specifically the religion of the majority of the area. The religious argument, ie arguing over who's invisible friend is the best, is why modern states tend to separate the church and the state. Israel may be secular officially but the impression is that the Jews have all the resources and are using their superior firepower to build a wall which is also taking MORE land from the people who are there.
You seem like an educated person, but you seem unable to take even the smallest of looks at our viewpoint. I can see the logic of wanting to go back to the land of one's forefathers, but to expect the existing inhabitants to just accept this without any kind of say in the matter seems unrealistic. As I said at the beginning, we all should have the right to live in freedom in the country where we are born. Do you understand this? Do you recognise this right? Would you be happy to be in the Gaza Strip? Would you be happy to be prevented from worship in your most religious areas? Would you fight if you felt oppressed?