Israel in this context I would see as a "for example" - hardly the only one.
Consider the case of a Japanese-American who vocally argues that the USA should be open to immigration to all, with no ethnic identity of its own, etc etc.... but that his ancestral country of Japan should remain monoethnic because reasons.
The double standard raises questions.
Are you denying that there are Jews who behave like that? Such people exist. Every ethnic group in this world has some criminal elements, and Jews are not an exception. Doesn't mean everyone in that nation is like that.
Imagine if anytime we tried to discuss the problems caused by the South American drug cartels, lots of people would refuse to acknowledge that the cartels even existed, left they get accused of being anti-Latino?
And this is all a bit tangential to the real problem with "Civic Nationalism" as a practical concept.