Not really "lefties" here, but this is a reasonable example...
I will say that First Nations issues in Canada are pretty complicated, particularly when it comes to unceded territories and the rights around those.
It's also worth mentioning that those rail line blockades in Ontario were done in support of other protests in BC where the government eventually sent cops in riot gear to dismantle the blockades by violence.
Something that didn't happen in Ottawa, and I'll let you figure out why.
Why didn't the government shut down these protestors bank accounts?
https://www.cbc.ca/news/business/via-rail-layoffs-1.5468617