State Dept on what is considered Antisemitism: https://www.state.gov/defining-antisemitism/
These definitions are intentionally broad and designed to censor criticism of Israel. You have more freedom to criticize the US Government than to criticize a foreign country.
> 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.
There are plenty of dual citizens that would proudly admit that their first loyalty is to Israel.
Other examples from the document use the term "Jews as a people", whereas this example seems to apply to accusing any individual.
Although perhaps a generous interpretation of the example, is that it excludes Israeli dual citizens, because Israel would be one of "their own nations"
Plenty of dual citizens that are not Israeli citizens and would admit the same thing, but we don't go around throwing such accusations at them.
> this example seems to apply to accusing any individual.
Does it? It would be accusing the individual just because they are part of a certain group.
Simply not true. There is plenty of rhetoric about immigrants (even 2nd gen+) in Western countries being accused of being disloyal to their Western citizenship in favor of their ethnic origin countries. Chinese, Indians, Middle Easterners, Latin Americans etc are all accused of this; see the recent riots in LA for a very recent example. Yet this insinuation is made illegal only with respect to one country only for whatever reason.