Hamas is the governing body of Palestine.

It was Palestine who did this.

I hate the phrasing "terrorist group" here. Not because what happened here wasn't an atrocity, but because people generally refuse to call state-backed violence "terrorist" violence. The word terrorism is incredibly broad, easily describing a ton of things Israel does. Yet, we refuse to call them a terrorist organization.

Israel slaughtered hundreds of protesters 4 years ago in Gaza.

Israel and Egypt have been blockading the Gaza strip in violation of the GCIV since 2007.

In 2014, a triple-homicide was committed. Israel claimed it was Hamas, and arrested hundreds of Palestinians. Hamas sent rockets into Israel, killing 2 people, and Israel initiated Operation Protective Edge, killing thousands of Palestinians.

Not to mention the entire Israel-Palestine conflict can be traced back about 100 years, where imperialist Britain endorsed the idea of a Jewish homeland in Palestine in the Balfour Declaration. Eventually leading to the formation of Israel in the late 40s and the subsequent ethnic cleansing of Palestinians, forcing nearly a million natives to move to make way for Israel.

"terrorism" is politically charged language with the intent of making us sympathize with a certain side. Of course we'll side with the "Israel state" and against the "Hamas terrorist group". The language used to describe these groups already prescribes how we should view them. Western media will never describe Israel's atrocities as terrorist actions, so people will dismiss the slaughter of tens or even hundreds of thousands of innocent Palestinians as "just war".

It’s difficult to not conflate them with hammas when 80% supprts them and celebrated the attack

It's spelled Israel

The native Americans would beg to differ about how the United States treated the people who were here before them.

The us doesn't hold Mexico or Mexicans in an open air concentration camp

True. The concentration camps on and near the US-Mexican border aren't open air.

There was already an article out that said Iran helped hamas.

Tehran is saying they didn’t do it. But articles from wsj and the like have said they did help.

There is no justification for what they've done. Senseless violence breeds senseless violence, but we can still blame those who do violence. Everyone subjected to Israel's abuse isn't killing civilians.

At this point it seems clear to me that Hamas is just using the Palestinians and doesn't actually care about them.

https://www.theatlantic.com/politics/archive/2018/04/kings-message-of-nonviolence-has-been-distorted/557021/

This does not apply to other renown activists like Nelson Mandela nor does it apply to revolutionary movements like the American Revolution.

You don’t know what you’re talking about lol

That is patently false. Of course Palestinians have been using non violent civil society tactics for a very long time. What do you think the vilified BDS movement was/is about? Looking for a Mandela figure? Look up Marwan Barghouti. The problem is that every time moderate Palestinians become even a tiny bit successful at making their voice heard internally or externally, either Israel in an official capacity or the dominant nationalist Israeli political powers and their allies within and without move in to completely stifle them. This in turn allows only the most extreme Palestinian voices to survive, since in the absence of a public opinion with a Conscience and a Decency to listen to NV movements, extreme violent movements are the only ones that can thrive on persecution.

Palestinian passive resistance is well documented.

You should educate yourself on things like the Great March of Return. Palestinians (and yes, Hamas too) marched peacefully for over a year near the border fence that entraps them. Israel responded by killing over 200 people and injuring over 9000.

If you're in the mood to get angry, go to youtube and look up interviews with IDF soldiers who did the shooting. Many smile and laugh as they brag about shooting unarmed civilians.