the case law around freedom of expression requires you to demonstrate a rational connection to your behaviour.

so, when i was blaring merzbow to get my neighbours to smoke somewhere else, i had a rational argument underlying my claim to freedom of expression. i was breaking noise bylaws, but i was doing so with a clear purpose of expressing myself. and, i was kind of daring the cops to move in. we ended up with a different constitutional battle, in the end.

what is the rational connection between blocking a rail line in ontario and stopping a pipeline in bc? there isn't one, and no court will erect one. 

if there was any connection at all, i'd probably support it, but this is really kind of just wanton hooliganism, it really is. it's still important to be careful in deescalating, regardless of how lopsided the court battles end up, in the end.