There is something rather important. It’s to point out that
Palestine = Israel + Jordan.
And Israel is the homeland of the Jews and Jordan homeland of the Arabs. And it should have been so back then. Plus Israel needs a defensible border because of all the recent history.
All Palestinian Arabs can legitimately be expelled into Jordan (with a “resettlement” humanitarian package per person, which would be way above and beyond what the expelled Jews got from Arab countries in 1948).
Israel (hopefully) creates a Palestinian Arab state so that they don’t just become cheap labor for the other Arab tribes/groups, who look down on them as expendable cannon fodder, their Arab-ness only invoked in common opposition to Israel (and common blinding of the Arab population to internal corruption in Arab countries), otherwise their Arab-ness is snobbed upon.
The Palestinian Arabs need to recognize Israel’s right to exist, and they aren’t returning to where they lived in 1948 or before by default, else the Ottoman Turks can return everywhere in the Middle East including Egypt. The Jews and Arabs fought in 1948; that means either Jews get driven into the sea, or the Jews keep the lands they get. That’s like the default war agreement when you go to war, especially an annihilation war.
Besides, the Arabs already got all the rest of the Ottoman territory as Arab homeland. The combination of Iraq, Saudi Arabia, United Arab Emirates, Bahrain, Oman, Yemen, Jordan, Syria, Egypt and part of Lebanon. Most of the Palestine Mandate has already been taken by Arabs (The Hashemite Kingdom of Trans-Jordan, or abbreviation: Jordan). The Cis-Jordan (the west-side of Jordan river) should be homeland of the Jews, while Trans-Jordan (the east-side of Jordan river) should be homeland of Arabs.
The reason for which I don’t quite recommend merely adding Palestinian Arabs into another Arab country, is because of the mutual racisms among Arabs tribes/groups. That’s why it’s better to purchase Sinai from Egypt, or mirror-WestBank from Jordan+at least-one-port-so-it's-not-landlocked, with viable economic development, so the country doesn’t remain poor and then get Hezbollah-ed. Best if it becomes as great success as a homeland of Arabs as Israel's success as homeland of the Jews. Like, with the great trade economy and intellectual development of some successful places in East Asia (and I am thinking, Singapore, Malaysia, Hong Kong, Taiwan), none of these countries have significant natural resources (neither does Israel, really), yet they developed. Apparently they emphasize education and higher education and science/tech knowledge first, rather than weapons first. And hopefully once the Palestinian Arab state gets created that's what they'll be geared towards, with much assistance from Israel and other Arab countries.