Absolutely there is. If you are the Barrack in a wood pile among a lot typical white people, political sarcasm intended, you might want to ask why. 99% of those people in Scotland and Ireland are 0 and you are not, reparations are needed.
"O" might well be dominant in those groups, but barely so.
The Scanderhoovians have more A+ than they do O+. The Finns are highest at 38% A+.
Obamasama wouldn't be distressed ~ odds are good his baby-daddy had more than his fairshare of European ancestry anyway, so he could be A+.