Please feel free to ask any questions! I am happy to answer them all

Can you please cite which part of Wikipedia is saying this?

"Palestine" and "Israel" are two names for the same region, so it doesn't make sense to be expelled from one into the other. I think there must be a misunderstanding here.

I bet this is referring to certain Arab States expelling Jews during the creation of Israel and the British occupation of Palestine, as a retaliation (which was horrible and stupid and I fully condemn it). But keep in mind this is well into the conflict, when Zionists and British occupation were already well into committing heinous acts and massacres, and that this is Arab States who sympathized with Palestine, not Palestine itself.

What I was referring to was treatment of Jews in Palestine before the Zionist project.

As for Hamas' anti-semitism, I think some background information is important here.

When it was founded, Hamas was not a popular group by any means. Popular Palestinian resistance groups at the time were socialist and progressive, such as the PFLP and other members of the PLO. Hamas was founded as a Muslim brotherhood affiliate, and its charter had many anti Semitic references.

Israel saw this as a huge opportunity, and it propped up Hamas while fighting off other groups. Fast forward to the 2000's, every Palestinian resistance group was left defeated, and Hamas was left as the only group left fighting. Palestinians had no choice but to support Hamas.

This was a major change for Hamas. It saw hoardes of Palestinians join its ranks, and most were not ideologically aligned with them. There are even Christians fighting among its ranks. This caused an ideological shift within Hamas. It was even reflected in its new charter in 2017, which dropped anti-semitic rhetoric and said it is fighting against Israel, not because of its religion, but because of the Zionist occupation. You can find this charter translated online easily.

Since then, many Hamas officials reiterated their position that they are not fighting to expel Jews, but against Zionist occupation.

Palestinians today see Hamas as a vehicle for their liberation, and not as an ideological alignment. But even then, most of the people in Hamas do not hold anti Semitic opinions anymore, and we should keep in mind this major shift throughout its history.