First Nations value the Act's special protections including immunity from taxation on reserve.
In the midst of the Cold War, Ronald Reagan used to say you could tell a lot about a country by what happens when its gates are flung open. If people flowed in, it was an obviously desirable nation; if they ran out, not so much.
Reagan meant it as a criticism of collectivist countries, where almost every sort of freedom and opportunity was restricted, including economic, religious, media, and freedom of association (i.e., to belong to a union or some other group).
Perhaps. There are examples of reserves that capitalize on their location. The Osoyoos Indian band in the south Okanagan does smart things, having created a first-class winery (NkMip), hotel and conference centre and thus profiting from wine sales and tourism.