The main idea is that the Israeli entity is an occupier and usurper of lands and is committing endless crimes against the Palestinian people, such as killing, starvation, etc., and therefore the Palestinians have been demanding since 1948 the establishment of their state and their right to self-determination.
A report by Amnesty International from 2022: Title: Israel’s apartheid against Palestinians: a cruel system of domination and a crime against humanity
See Link: https://www.amnesty.org/en/latest/news/2022/02/israels-apartheid-against-palestinians-a-cruel-system-of-domination-and-a-crime-against-humanity/
The main idea of the militant organizations in Gaza is to create a Palestinian state from the sea to the Jordan River, that is, to destroy Israel. There is no solution to the current situation as it will repeat itself in periodic cycles.