I think a nested identity works best.
I identify as a White Anglo-Saxon Protestant Southerner. This isn’t my only identity though. I’m a Lutheran and that connects me to Protestantism and more broadly to Christianity as a whole. I’m a Southerner and that connects me more broadly to other Americans and to the rest of the Anglosphere and then to Northwestern Europe and finally to Europe as a whole. I see identity as a matter of degrees based on kinship and cultural similarity.
I can be most intensely interested in my particular branch of the Anglo-Saxon tree without being disinterested in fate the tree as a whole. I don’t believe in pretending as liberals do that the fate of all of humanity is equally important to me because that would be a lie. Similarly, I don’t believe as some White Nationalists do that all differences between Europeans should be erased in some kind of global empire or that all White people should be equally important to us.
No, if you are Spanish or Portuguese, then should care more about your own people and work your way outward from there. You should be interested though in the welfare of Europe as a whole. We’re still far more closely related to each other than to other races. Shared ancestry isn’t everything but it isn’t nothing either. It is important though.