"Working definition.. accepted around the world"? I don't think so. There's probably lots of money trying to achieve that.
I don't know what people make of the supposedly "international definition of antisemitism". I say supposedly international as it isn't accepted by the Labour Party in the UK, nor (I think) by the UK Parliament, nor (I suspect) by most British people. The new 'definition' seems another Zionist project.
Firstly, the supposedly "International" definition confuses racist "anti-semitism" (meaning anti-Jewish presumably) with being somewhat anti-Jewish, anti-Zionist or anti-Israeli. There is nothing wrong with being critical or broadly against all those three distinct groups.
Definition of antisemitism
Antisemitism is a certain perception of Jews, which may be expressed as hatred toward Jews. Rhetorical and physical manifestations of antisemitism are directed toward Jewish or non-Jewish individuals and/or their property, toward Jewish community institutions and religious facilities.
Manifestations might include the targeting of the State of Israel, conceived as a Jewish collectivity. However, criticism of Israel similar to that levelled against any other country cannot be regarded as antisemitic. Antisemitism frequently charges Jews with conspiring to harm humanity, and it is often used to blame Jews for “why things go wrong.” It is expressed in speech, writing, visual forms and action, and employs sinister stereotypes and negative character traits.
Contemporary examples of antisemitism in public life, the media, schools, the workplace, and in the religious sphere could, taking into account the overall context, include, but are not limited to:
Calling for, aiding, or justifying the killing or harming of Jews in the name of a radical ideology or an extremist view of religion.
Making mendacious, dehumanising, demonising, or stereotypical allegations about Jews as such or the power of Jews as collective — such as, especially but not exclusively, the myth about a world Jewish conspiracy or of Jews controlling the media, economy, government or other societal institutions.
Accusing Jews as a people of being responsible for real or imagined wrongdoing committed by a single Jewish person or group, or even for acts committed by non-Jews.
Denying the fact, scope, mechanisms (e.g. gas chambers) or intentionality of the genocide of the Jewish people at the hands of National Socialist Germany and its supporters and accomplices during World War II (the Holocaust).
Accusing the Jews as a people, or Israel as a state, of inventing or exaggerating the Holocaust.
Accusing Jewish citizens of being more loyal to Israel, or to the alleged priorities of Jews worldwide, than to the interests of their own nations.
Denying the Jewish people their right to self-determination (e.g. by claiming that the existence of a State of Israel is a racist endeavour).
Applying double standards by requiring of Israel a behaviour not expected or demanded of any other democratic nation.
Using the symbols and images associated with classic antisemitism (e.g. claims of Jews killing Jesus or blood libel) to characterise Israel or Israelis.
Drawing comparisons of contemporary Israeli policy to that of the Nazis.
Holding Jews collectively responsible for actions of the state of Israel.
According to the definition, nobody may compare the state of Israel with Nazis, nor say that the Jewish people "do not have a right to self-determination (e.g. by [saying] that the existence of [the current] state of Israel is a racist endeavour)".
I don't say it, but I am free to make the comparison with Nazism (should I wish to) and I do think that the Israeli project is the work of Zionists (whether Jews or not). I don't consider Israel a democracy quite like "any other democratic nation". So I reject their definition. My definition of semitic comes from the dictionary...
I think the definition tries to address anti-Jewish prejudice but 'prejudice' is not a word mentioned in the pro-Israel, anti freedom of speech definition. Anti-semitic, taken literally, would be against people who spoke a certain "family of languages".
They say people shouldn't hold the Jews "collectively responsible for the actions of the State of Israel", but appear to muddle being a Jew, a Zionist and an Israeli all together, as if criticism of one must be considered "antisemitism" and criticism of all three groups.
I think the definition is about Israel and the Zionist project and not about racism or prejudice at all. I also think the definition tends to infringe on people's freedom of speech.
Religion and tribalism are nothing but trouble.