I don’t know the basis of the statements you have made or the assumptions you make about what individuals would have done before the war.
Polls?
Unless the polls state there is 100% opposition to Hamas then I have absolutely no idea how a poll could be proof that Hamas are not recruiting.
And really, is anyone going to answer a poll by stating they themselves have just joined Hamas?
If the pols show any support at all for Hamas then that is an indication that there are people who very well might be recruited.
If you have problems with the Jerusalem Post Article I liked, please take that up with the editor.
“The Post was told on Wednesday night that the 40,000 number was more accurate.This could suggest that a majority of the Hamas fighters are still from their original force, and they have undoubtedly added thousands of new recruits.”