Asian-Americans have finally made it in America. How do we know? Not from their wealth or educational achievements, but from the way progressives now target those in the community who believe people shouldn’t be judged by skin color. For in so doing, these Asian-Americans have exposed a growing fault line in affirmative-action orthodoxy.

The most recent occasion for progressive grievance comes courtesy of the state of Washington. There, Asian-Americans proved instrumental in killing a law that would have overturned a two-decade-old...