I get what you're trying to say but let's not go down that path. Genocide isn't justified no matter the circumstances.

Only if you believe the racist idea that a nation, any nation, can represent everybody who is part of an ethnicity, i.e. and specifically in this case, that Mathematically the group "Jewish People" and the group "Israel and its supporters" are exactly the same group.

If however the group "Israel and it's supporters" is but a subset of the group "Jewish People", then the actions of the subset of the larger group do not justify punishing the wider group, same as, say, the actions of the Ku-Klux-Klan do not justify punishing everbody who is deemed White or the actions of ISIS do not justify punishing everybody who is Muslim.

I think the idea that the actions or victimization of some who are part of a broader group defined by nothing else than the ethnicity they were born into justifies a different treatment of everybody of the broader ethnic group, is THE most common racist trope there is, to the point that even liberals defend that shit (whilst, with zero irony or self awareness, calling it "positive").

https://en.wikipedia.org/wiki/Zionist_antisemitism

Zionist antisemitism or antisemitic Zionism refers to a phenomenon in which antisemites express support for Zionism and the State of Israel. In some cases, this support may be promoted for explicitly antisemitic reasons. Historically, this type of antisemitism has been most notable among Christian Zionists, who may perpetrate religious antisemitism while being outspoken in their support for Jewish sovereignty in Israel due to their interpretation of Christian eschatology. Similarly, people who identify with the political far-right, particularly in Europe and the United States, may support the Zionist movement because they seek to expel Jews from their countries and see Zionism as the least complicated method (vis-à-vis ethnic cleansing or genocide) of achieving this goal and satisfying their racial antisemitism.

...

The French-Jewish journalist Alain Gresh noted that the antisemitic right-wing politician and Nazi collaborator Xavier Vallat said that "Jews would never integrate into France and that they had to go to Israel.

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The historian David N. Myers wrote that "Leading white nationalists such as Richard Spencer and Jared Taylor liken their movement to Zionism, seeing it as a model for the kind of monoethnic purity they favor in [the United States]." Myers states that the "combination of pro-Israel and antisemitic sensibilities" is common within American politics due to the combined influences of the "Christian evangelical Right with its end-game theology", "archly conservative" Catholics, and the political ideology of Donald Trump.