

this is inequitable
Not what equity means. Equity refers to equal access to the same opportunities. Put simply, due to their post-genocide, White Australia Policy and “Breeding out the Black” (real campaign) numbers, Indigenous Australians completely lack representation in Parliament. Therefore they lack access to the opportunities your average Australian (regardless of race) has. An Indigenous Voice to Parliament will make things more equitable, not less, as it will provide access to the same opportunities of representation that the rest of us have already.
G’day, sorry for the long wait.
To preface: I have studied constitutional law (was a lockdown subject for me). I’m not going to claim to have the understanding of either the High Court or the Constitutional Lawyers I’ve encountered, and bear in mind IANAL, and nothing I say here constitutes a true legal interpretation.
Based on both other legislation where the term “powers” has been used, as well as the context in which it is used in the proposed wording, I read it as referring to any abilities it may rely on in order to make its representations. I couldn’t tell you what these may be, as that would depend on the Government of the day, but my expectation would be they’d be related to information gathering, decision-making (including whether a chair would exist and veto power), whistleblowing, and those kinds of things.
The wording is purposefully very vague of course - which serves a few purposes. The big one is about making it hard for oppositional forces to take it to the High Court to claim whatever controversial action its taking is unconstitutional; there’ve been a few cases like that that just end up wasting the court’s time, along with tax payer money. Similarly, keeping it vague gives plenty of room to legislation to define its limitations, and allows for evolution as the needs of the community change.
Sorry for the essay mate, tl;dr: did study Constitutional law, had a great teacher! Powers is kept vague, but I would argue it refers to abilities. Vaguery is a good thing in a constitution because it gives room for the law to adapt and evolve.