no, black is dominant. we will always override the other side, even if it's someone who's just 1/8th black. they are black.
That ideology is mostly prevalent in America only tho. From the way you said your post, you are a clear product of the American culture injection of this "one drop = black" bullshyt.
Most other countries with people with 1/8, 1/16 this or that, are gonna look a different way.