The group's strength doesn't stem from the appeal of its ideology or actions, but from the failure, humiliation & demonization of every single alternative path.
Nonviolence, diplomacy, negotiations, advocacy, legal battles, coexistence & peace groups... have been tried countless times by Palestinians only to be crushed by Israel & betrayed by the international community.
That very official himself said as soon as he got into office he was told not to bother & give any attention to Gaza or the Palestinians. "You'd burn a lot of political capital", "you'll waste your time", "things are quiet", "it's not going to work"... he was told, & he played along.
Hamas' message is always simple: "the international community, negotiations, peace processes...etc won't help us a jot. Look at Mahmoud Abbas, he gave Israel everything they ever asked for, detained & killed scores of Palestinians for them, & got absolutely nothing out of it except humiliation & being labeled by Israel as a terrorist in suit & a great antisemite."
Their conclusion has consistently been "if we continue to die slowly, then let's die in a dignified way, take matters into our own hands & strike back the oppressor."
Despair, immiseration & trauma always boost this sentiment dramatically.
And as long as every other alternative path continues to be foiled & crushed by Israel & betrayed by the international community, Hamas' message will forever stay alive.
Palestinian nonviolence requires global non-silence.