@amerika @mar77i @mutageno2 It's not. In the past, people used to identify themselves with the tribe or feud they live, usually with loyalty to the king or lord.
The whole concept of "we identify ourselves as" was far modern.
What's a British? What's a Italian? There is no definition to that, it's a social construct created by politicians.
Most countries have their current "nation" concept according to natural borders and language, not by culture or ethnics.
UK, US, Russia and Austrians made their nations to be multi-cultural intentionally because nations are all about expansion and absorbing smaller groups of people.
Public education is fundamental into nationalism. Teaching YOUR language, YOUR morals, YOUR national heroes and love to YOUR flag is needed because they don't come in other way.
Zionists are just Jewish ethnonationalists.
What most people call "Zionism" is egalitarianism, which always punishes the good to reward the mediocre.