Not even the Egyptians want them back in the Sinai now.
That is an extremely problematic view. It reminds me of the Évian Conference where Hitler was arguing that “no one wants the jews” since the US, UK, and other countries refused to take in german jewish refugees, and thus “the final solution” was spawned. It’s an extremely dehumanising view that ended up in genocide. Please refrain from repeating such opinions.
Besides that, the Palestinians have a long history in Palestine. I don’t understand what you’re hinting at with “wanting them back”. Back where? They already have a home.