My educated guess based on "as well as freezing bank accounts just for attending a peaceful protest" in the same breath is vaccine mandates.
Poster is a nutjob. The "peaceful protest" was a Russian dark money backed attempt to disrupt Canadian life, to sow discord and chaos. I mean, they were successful with Brexit and Trump so they took a stab at Canada but they didn't manage to tear Canada apart. On the surface, they were protesting vaccine mandates but that was just the drivel for the redneck fodder. Canadian authorities haven't seen the like yet so they let it grow up to a point where they actually managed to disrupt Canadian economy seriously by occupying a bridge leading to a border crossing. So the Prime Minister declared a state of emergency, froze their bank accounts and sent them home. No one died. These nutjobs forget this rather important point: Canadian authorities peacefully managed to end this.