Isn't the main point of the Voice to help "close the gap"? If so, aren't we making things worse for Indigenous people by not legislating the Voice now?
The main reason for the change is to recognise Aboriginal and Torres Strait Islander Peoples as the First Peoples of Australia.
The Voice, proposed by the Uluru Convention, is a way to do this that has both symbolic and practical value. It's hoped that it will help to reduce inequalities ("closing the gap"). It may always be useful for explaining how Indigenous law and culture relate to policy proposals.
The benefit of this proposal is that the main aspects of the Voice are defined in the Constitution, but there's a lot of room for change in its structure and function in the legislation that Parliament makes over time.