Hamas was literally formed as a reaction to the continued illegal occupation of Palestinian territories

Hamas was literally formed because the Palestinian government was becoming too secular and was too interested in peace with Israel.

Here is an interview, with quotes, and details, with a literal expert on th subject who is also Pro-Palestinian.

How Hamas got elected:

KEAR: The key Fatah people - most of Fatah are living in the diaspora. They're the ones living in the four-story houses, driving around in their gold Mercedes. They're not experiencing the day-to-day privations of the occupation, whereas Hamas - they're a product of the occupation. You can see them walking in the streets. You can see them at the market. People may not necessarily agree with their narrative, with the - as an Islamist movement. They get a lot of respect for the fact that they live amongst the community.

ARABLOUEI: As the first intifada went on, many Palestinians became more and more frustrated not only with the occupation but with the PLO/Fatah as it attempted to negotiate a two-state solution with Israel.

ELGINDY: The reality was that Fatah and some of the smaller parties were interested in joining a peace process that would result in a compromise situation of a West Bank and Gaza state.

KEAR: And certainly by this stage, 1987, 20 years of occupation - what have the PLO done? When I say PLO, what has Fatah done? Nothing, virtually. We've been fighting for 20 years, resisting for 20 years. Nothing has changed. In fact, it's actually gotten worse, where we are further away from an independent state than we've ever been before.

Israel did not become aggressive to Hamas until after they began terrorist activities.

BACONI: "Hamas Contained: The Rise And Pacification Of Palestinian Resistance." When Hamas was established out of that structure and it began to engage in resistance activities...

ARABLOUEI: Like attacks on military posts and abducting Israeli soldiers.

BACONI: ...Immediately, Israel's approach to dealing with Hamas changed, and it stopped being one of approval. It started being an antagonistic relationship because obviously now it's a resistance party.

HACHAM: In retrospective, I think this was - I call it the original sin of the Israeli authorities - Israeli security authorities that did not understand that period of time what can be developed of this innocent organization movement, al-Mujama al-Islamiya.

https://www.npr.org/transcripts/1198908227#:~:text=ARABLOUEI%3A%20So%20Sheikh%20Yassin%20and,Islamist%20ideology%20created%20the%20organization.

This frustration and aggression is also detailed in the original Hamas charter

https://avalon.law.yale.edu/20th_century/hamas.asp

You don't have to agree with Israel's government, response, or how this war is being prosecuted, to understand that

1: Hamas is an islamic terror organization that usurped a government and denies democracy to millions

2: Hamas cannot and will not back down, because Jihad is their sole purpose for existing

3: A two state solution was one-track, and is always infinitely more possible with any other Palestinian leadership.

Support for Hamas is always wrong. Gazans who support Hamas today are wrong, but they do not deserve to be killed or to suffer as they have been.