It's called progress, and you just have to deal with it. 

First Nations don't have a monopoly on nostalgia. My parents in Scotland used to get all misty-eyed talking about how the town council ripped up the playing fields outside our house and built a housing scheme,  then chopped down the wooded area next to us to build bungalows.  The burn (stream) down the road where I used to paddle as a child was piped over long ago and disappeared. 

But it provided jobs for an increasing population and homes for newcomers. Now that these "newcomers" are established they have become environmentalists themselves, and are protesting further development on their doorstep. And so it goes. 

The economy of Canada and the jobs of many people depend, directly or indirectly, on getting our natural resources to market. Pipelines are the safest way to transport oil and gas. We can't stop progress because of the objections of people who romanticize the past and already have their houses built.