Palestinians in Gaza have been offered citizenship, relocation for their families, and a financial reward to snitch on Hamas.
Hamas is very popular unfortunately. Still hundreds, maybe thousands now, of collaborators including the family of its leadership.
Oh yea also your numerical comparison is more like 1/50 are Hamas fighters or directly involved. We (as in everyone native to the region) have big families with lots of kids which is why the population demographics look like they do. My grandma was 1 of 12 siblings. The guy I linked is 1 of 9. But as the guy I linked said the kids are taught and expected that being a militant fighter is a noble goal so a few young men in each family end up becoming fighters with family support.
Take it or leave it.
Ones the shortest path to a good life for the kids. Being stubborn and martyring for the cause is what everyone there is taught is right at the schools. Including the UN run ones.
And you seemed to have missed the citizenship and relocation to a safe place with protection. The only threat to them at that point is the violent thugs that run their government and the people who think collective punishment is OK who want revenge.
Germans went through this too BTW.