As an American it's frustrating to me as well

The amount of people I know who have no attachment to their so called "homeland" is pretty much most of them. And usually due to their families they basically just pick one family to associate with.

I know people who say "I'm Irish" while their siblings say "I'm Finnish." Simply because of which grandparent they more closely associated with.

Of course normally when I ask people where they're from it's usually in the context of which state.

Edit: By attachment I mean no other attachments than genetics. They don't take part in the culture, they don't visit, they don't stay in contact with their relatives over there, hell most don't even know any of their relatives over there.