Ever heard of the civil rights laws?
It's right here:
http://usinfo.state.gov/usa/infousa/laws/majorlaw/civilr19.htm
It addresses FEDERAL programs...and FEDERAL employment.
Most efforts in NO, LA and MS will be state-based and can discriminate at will without an initiative like we passed. The federal money will flow through...they won't be federal businesses/projects.
Your initiative, while all well and good, has been solved by the Civil Rights Acts of 1957 and 1964. Your problem is not a federal problem, it's a local political problem, easily solved by voting the sumbitches out.