Of course.
But banning labour brokers would put you in a difficult situation as a small employer, or someone who takes on project work. This would have a negative impact on the economy, end of story.
The correct approach should be to regulate and police them. They provide a valuable service, and SOME of them engage in abusive practices. So do we ban cars because Gareth Cliff was speeding?
I'm all for labour brokers when they are used for seasonal, project or other short term employment. The problem comes in when someone is employed for 13 years through a labour broker in the same position and gets paid half or 1/3 of the money paid by the employer. The unions should learn how to articulate their problems instead of making blanket statements that scares everyone.
* You can replace unions with polititions and just about everyone in South Africa with an issue.