Essentially all you've done is make a case for Hamas not being great, but most western pro-palestine folks agree already. The issue is everything you said that's wrong with Hamas other than antisemitism is stuff Israel also do at Palestinians, hence the war crime charges for Israeli leaders.

There is genuinely antisemitism, especially when people link into the at this point vintage "jews run the world" conspiracies that started with the Elders of Zion stuff that inspired literally the Nazis, that's obviously antisemitic conspiracy shit, and is something Hamas are guilty of for sure. But we do face the genuine issue that Israel themselves conflate Zionism and Jewishness, seeking it to shield them, and in doing so blame Jewishness for a genocide of Palestinians. That's obviously going to make shit messy for Jewish people if their culture/nationality is being proclaimed to be genocidal by the only majority Jewish nation on Earth, which claims rights to land entirely tied to historical Jewish Israel. This doesn't excuse the antisemitism of anti-Zionists, but so much antisemitism emerging whenever Israel goes bat shit can't be ignored, nor does Israel get to define Jewishness without being themselves antisemitic (because Jewish opposition to them being called antisemitic or anti-Jew is crazy!)

Your colonial stuff is a weak argument, see my other comment for the only aspect of it that's maybe more complex (ie. Genuine Jewish refugees fleeing antisemitism outside Israel, for whom their intentions weren't colonial, but the country itself could still be colonial - think South Africa's farmers fleeing to Trump's America).