nichtsowichtig

With a history as messy and complex as Palestine/Israel, yeah, obviously there is room for doubt. Refusing to have a discussion here doesn't help anyone.

The accusation is 100% unfounded,

you don't even know why exactly the player made these accusations. you're just making assumptions.

Tolerance ends with the intolerant

Please, tell me precisely at which point the israeli team proved themselves intolerant?

I guess that is the big tagedy. which leads a lot of israeli into very militant and isolationist positions. Defending autonomy and self determination at all costs. Which also causes a lot of suffering on other people.

Well, it is common that the term "Israel" is used in a very generalizing way. "Ireland refuses to shake hands with Israel's Basketball team" would be misleading in a similar way, but this generalization is so common that people don't really notice it anymore

holocaust inversion is textbook modern antisemitism.

Giving people water and food is not funding terrorism. Starving people, denying them basic human rights and killing inocent people is funding terrorism. Yes, the humanitarian aids will also benefit hamas, but that does not give us the right to deny people their basic human rights

its like going to qatar to play but wearing a rainbow flag, its virtue signaling

People didn't even end up wearing rainbow flags because they were threatened with consequences. it was basically virtue-signaling-signaling

Well I think the reality is really complex and intertwined. Jewish people live in Israel because, historically speaking, they aren't safe anywhere else. In this context here: It would be safe to say that the jewish player's ancestors sought refuge in Israel because they were not welcome in the country they previously lived in (That could be Germany, Russia, Yemen, Iran etc). Many of them had no other choice and for many, Israel was the only hope for a life in dignity and safety. Completely separating jewish identity and israeli identity is impossible, it is connected.

but I don’t feel this is the way it’s being used

In a way I agree. The concept of anti-semitism is used when it is convenient. People are called anti-semites when they call out the war crimes commited by Israelis far right government, and likewise people categorically refuse to acknowledge that criticizing israel can be antisemitic. It is totally polarized, and people don't care about context anymore.

what do you mean with Israel exists because of antisemitism?

Zionism is a movement founded by european jews who have suffered from persecution for centuries. So they believe that to protect themselves from their oppression, they needed an own nation. Jews started to understand themselves as a people. And not to mention, The Shoa made millions of people seek refuge in Israel/Palestine after world war two. So in short, if anti-semitism wasn't a thing, the nation-state of Israel wouldn't even be an idea.

even considering that, withdrawing support for civilians would be unethical

yeah, I think it is strangely twisted. It has nothing to do with the accusation of anti-semitism, it is just israel they don't like. They never wanted to shake the hands of the israeli team, and just used the player's comments as a reason.

I don't. If you click on "Jews" on the wikipedia it says right in the beginning:

Jews (Hebrew: יְהוּדִים‎, ISO 259-2: Yehudim, Israeli pronunciation: [jehuˈdim]) or Jewish people are an ethnoreligious group[12] and nation[13][14][15][16][17]

The jewish are a people. Many of them aren't even religious. Antisemitism created israel. and not the other way around.

Here another wikipedia article on distinguishing antisemitism and criticism of Israel.