Other than the support for Muslims and anti-Jewish sentiment, why is there any argument to support Palestine in this war?

I really want to understand the argument for Palestine.

Israel was there first. I don't believe there's any argument about that.

Hamas, I believe, suggest that they are entitled to a Muslim state whereas the Jewish people have Israel, but any of the countries around Israel are Muslim states, so that's not really an argument either.

Then, Hamas started this latest tit/tat by bombing Israel a few weeks ago.

It seems to me that Palestine is in the wrong any way one looks at this. Moreover, it would seem that Israel is now in a position to just take over that area and call it all Israel.

Now, explain to me where I'm wrong.

Other than the support for Muslims and anti-Jewish sentiment, why is there any argument to support Palestine in this war?
Other than the support for Muslims and anti-Jewish sentiment, why is there any argument to support Palestine in this war?
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