It's not "the wrong battle":
1. It's not as trivial as that for a Canadian tar sands operation to send oil by truck into the US to some port.
2. There are alternative routes for pipelines. Some areas struggled against pipelines and they were rerouted in a way which doesn't threaten their area. Of course this can threaten some other place, but not every piece of land is the same.
3. Instead of trucks, the pipeline-laying entity may consider safer dual-pipe solutions which will, effectively, not leak.
4. You're only saying that there's another parallel struggle, which is preventing regular oil transport by truck because it's unsafe. Well, possibly.
5. Prices are not set according to what we believe they should be set, but according to various relations of power in society (including but not limited to supply, demand, ability to pressure the state etc.); this is doubly the case for strategic resources like oil, where there's a literal international body for price-fixing...