Because it apparently needs to be said:

Being Jewish does not mean belonging to a particular region.

Israel being a Jewish nation does not mean that it is a theocracy.

Jews are a people with a shared history, culture, and variety of languages. People of all races. People of a variety of religions, even.

As Rabbi Mordecai Kaplan put it: Judaism is a civilization.

To know someone is Jewish is not to know what they look like or what they believe, but it is to know that they likely have to worry about antisemitism, violence, and ostracization no matter what relationship, if any, they have with Israel.