The Two Row Wampum was an agreement between the Iroquois and the Dutch, not the British. The Royal Proclamation makes no mention of any agreements with the Indians, it simply set out (non-permanent) boundaries of the colonies and lays out very explicit guidelines for the expansion of the colonies to only occur onto lands purchased from the Indians by Crown officials or ceded to the Crown (i.e. the colonists were not to purchase lands from the Indians directly). However, all Indian lands were considered to be under the domain of the Crown and the Proclamation did not extend any sovereignty to the Indians.
BTW, its not so much the Haldimand Proclamation that should be used, its the Simcoe Deed which both partially re-affirmed and corrected the Haldimand Proclamation while laying down guidelines on how the Six Nations could dispose of the land (ie. only through land surrenders to the Crown, not through direct sales or leases).
As for those surrenders not being valid, they were valid. If the proceeds of those surrenders were mismanaged thats a different matter.
Today's protestors can't turn back the hands of time.