Elements of the Islamic community are like that. As counter examples I like to point to Ismaili Shias, the Abraham Accords and the recent reforms promoted by MBS. There’s also a lot of open hostility to the Muslim Brotherhood.
By placing all Muslims on the negative side you’ve taken on a Sisyphean task that can never foreseeably be won, and tossed aside recent gains. Notwithstanding the antisemitism and Islamic supremacy of the Quran and the cult of the infallibility of the judgements of Mohammed, the depth of commitment is not that intense beyond the core believers. Though nothing is inevitable the pull of western materialism is a stronger long term determiner. There’s also Lee Smith’s thesis of “the strong horse”, that Arabs are inclined to follow the strongest element in society. October 7 was seen as evidence of Hamas’s strength. The decimation of Hamas and Hezbollah’s leadership in such a short period should undermine that perception even as propaganda outlets like MEMO try to promote it.
You raise the issue of who Gazans would vote for if they could vote. Since Palestinian society is not democratically structured consists of oligarchies the vote doesn’t really matter. The problem they’ve always had is believing their own rhetoric that Israel will be destroyed. One should not in turn replicate their mistake in kind.