2.I think United States of America has successfully implemented the policy of affirmative action, majority of people of all racial groups there (African Americans/ blacks), are employed and there is a balance between men and woman. The policy succeeded because they managed to empower or to redress the racial issue in most sectors of the economy.
3.South African government chose to implement the affirmative action and act, because it makes sure that qualified designated groups (black people, women and people with disabilities) have equal opportunities to get a job. South Africans especially black, women, disabled people, were previously disadvantaged by apartheid education and historical discrimination, as a result the government wanted to create a balance between all racial groups, by bettering education levels and skills among designated groups, thus making an access to and quality of employment. The policy is morally justifiable.
4.Yes it needs to be discontinued after a certain length of time, because for example South Africa has already made a huge change in racial redress, gender equality in terms of employment, disabled people already they are employed in most places within South Africa. I think that in few years to come there will be a balance in terms of quality employments and many people would have benefited from this policy.
5.I think people from different racial group are unemployable in certain sectors of the economy and not in others, because of their level of education, skills for the job, physical disabilities, historical disadvantages and gender which prevent them to work or to be employed in certain places.