It's like Ann Coulter's tweet last night where she said nobody should be able to vote unless all 4 of their grandparents were born in America - and then had to put her foot in her mouth when people pointed out that this would disqualify Donald Trump.

So yeah, as the other poster mentioned, "if you go back far enough". If you go back far enough, we're all relatives, too. But that doesn't necessarily have meaning by itself. It's the individuals that choose to, or choose not to, apply meaning from such a technicality.

Even lots of illegal immigrants. :-)