Before the horse was hitched to the plow ,man used a captured slave.
The horse would eventually free the slave from the plow but allowed the slave to be used for other reasons ;in turn allowing his master to contemplate better his surroundings and through the gift of reason create a better world ,for himself and the slave as well.
Slavery was the inevitable slow and tortuous path that would in time allow man to escape from the bonds of barbarism to the clear light of reason; and a civilization based on ethics ,justice and human dignity.
But in recent years a very insidious form of human exploitation has emerged ,that allows one group to gain financial and legal advantages at the expense of another.[AFFIRMATIVE ACTION]
This legalised form of social coercion is widely accepted as an attempt to
remedy the wrongs of the past ,inflicted upon a legally deprived racial entity, by granting special rights and privileges to their descendants,living now ;and sails under the rubric of civil rights.
The effect has been to deny employment and other social rights and benefits of american citizenship to those who are more qualified ,as evidenced by test scores and achievements ;and also by experience ,to a less qualified racial minority based on nothing more that skin color.
This is a subtle but devasting form of human exploitation that clearly needs to be addressed.But has as yet been seriously immune to criticism.