Common law precedent in the form of court decisions can usually be overridden with legislation (unles it’s, e.g., a constitutional/Charter decision), or worked around by finding a different, constitutionally compliant way to achieve the same police ends.I don't know much about laws. Can decisions made under common law be changed?
The current system isn't working. Many reserves are rife with sexual abuse, domestic abuse, drugs and alcohol abuse, child abuse, fraud, criminal behavior, and so on. Money get's thrown at reserves and intercepted by a few gate keepers who merit it out how they see fit, mostly with no transparency or accounting. Look at Lytton BC. $290 million dollars in recovery funds and not a single house rebuilt yet. First Nation suffering is a self-perpetuating business. Maybe the solution is to just rework those 300 year old contracts from scratch.
Renegotiating the treaties with the various First Nations though? I’m totally unable to speak to that, save for being pretty confident that those are very solidly entrenched in law and can’t just be arbitrarily wiped clean. This is always a fun part of the discussion when groups within various provinces talk about separation.