Modern usage of language has really blurred the lines, and it is confusing.
You are confusing 'State' vs 'Nation'. A nation does not need a legal entity to exist. 'Kurdish', 'Jewish', and 'Burman' are the literal names of the nation.
Belonging to a nation is amongst the other members to determine, not me. If the Irish people consider an assimilated German to be Irish, so be it. A German who does not assimilate, would likely not be considered an 'an Irish person' but rather an 'Irish Citizen' or more correctly, 'A Citizen of Ireland'.
The Jewish people includes the diaspora, the Jewish state is Israel, and the Jewish nation is something that might have existed before Israel was recognized. A people (singular) is neither a nation nor a state. It's closest to a race or ethnicity. The Kurdish nation might exist, but it doesn't include the diaspora, while the Kurdish people would.
You are confusing 'State' vs 'Nation'. A nation does not need a legal entity to exist. 'Kurdish', 'Jewish', and 'Burman' are the literal names of the nation.
Belonging to a nation is amongst the other members to determine, not me. If the Irish people consider an assimilated German to be Irish, so be it. A German who does not assimilate, would likely not be considered an 'an Irish person' but rather an 'Irish Citizen' or more correctly, 'A Citizen of Ireland'.