Firstly:
Okay now for the post.
When Palestine is liberated, I think the vast majority of settlers will either be [redacted] or forced out of the region. There is no way that any Arab in the region will accept having a settler in their land, and the settlers know this. The plan will have to be a mass exodus for the west, both for their safety and livelihood (I can see many going into ghoul industries like defense, tech, and police training).
That being said, how would you react if your country decides to accept settlers? Would you support the move? If they were going to live in your community/ neighborhoods how would you feel?
I don't think dual citizenship numbers are out there, but this site claims 10% and the highest estimate I've seen looking around is 1 in 8.
https://www.dualcitizenshipreport.org/dual-citizenship/israel/
Personally, sure I would take them as refugees, maybe they can feel like second class citizens for once. (Not that I think refugees should be treated that way, but that's just the reality)