Since you prefer not to be centered on the Charter itself: if we are to understand why the decision was made to launch Operation Al-Aqsa Flood; an in particular how they were able to recruit so many people to agree to what was apparently promised as a suicide mission -- then I submit that is necessary to consider the whole background of events up until that time.
The 2018 "protest"
Can we just acknowledge the cruel and unduly harsh nature of the military response to the protests (which by all accounts did at least start peacefully, and from within sectors of society independent of Hamas) without having to allude to the Israeli government's snide, mocking ("fake protest") narrative of it?
As if these people have nothing to protest or be unhappy about.
We have reporting on the motivation behind the Al-Aqsa Flood. That reporting suggests:
* Sinwar and the Gazan hardliners siezed control of Hamas; political leadership of Hamas (on the "other side", the "Sinn Fein" types in the movement, if you want) allegedly were forced to flee.
* Sinwar held a conference more than a year ago to plan out the aftermath of the attack, in which he expected to gain complete control Israel's territory, and had worked out down the level of which exact Israeli Jewish professionals he would allow to leave versus which he would force to stay to help build up the Palestinian state --- some of that reporting is sourced from Hamas people in attendance who were freaked out because Sinwar had become a messianic lunatic. This reporting, as I remember it, actually precedes October 7.
* Apparently, Sinwar expected the October 7th attacks to immediately ignite solidarity attacks from the West Bank, unifying Gaza and the West Bank behind Hamas (this is, of course, one of the most salient conflicts in the region; they literally fought a "civil war" after the 2007 "elections").
* Further, it was apparently Sinwar's expectation that Iran would directly and forcefully back these attacks, committing Hezbollah to full scale northern front.
* Thus: the decision to launch the attacks on October 7 were based on a long-term belief that Hamas was poised to destroy the state of Israel outright.
So if you'd care to pass along some of the sources you've been drawing from, I'd be happy to give them a close read.
I am unable to vouch, so hopefully someone who is reading this will please do so.
https://www.memri.org/reports/hamas-sponsored-promise-hereaf...
Notably, a bunch of more mainstream sources corroborated this report (just Google for the name of the conference). I think it's very likely to be legitimate.