Of course it is - the action is to stop discrimination of any kind. And yes, yes it has been effective. Hate crimes have dropped off precipitously and minority unemployment is at an all time low. Continuing to play this reverse-discrimination game will foment resentment, especially in the group that is "allowed to be discriminated against" according to the political flavor of the times (particularly the ones that aren't winning in society) thus creating the monster that you sought to destroy.