They could just absorb them and give them a better future."These areas are no longer inhabitable". "There is no Gaza Strip".
I don't think Israel will stop until they take Rafah, that proposal you shared a tweet about seems highly unlikely to move anyone.
Most importantly it's time for the Arab world to consider where they will create a new Palestinian state or if they won't.
It's time to be looking forwards
Culture isn't bound to land.
And I say this because they don't seem to want a Palestinian state either. Partly because they've radicalized a portion of that society and don't want it flowing next door.