Access to most of Ottawa was been cut off, including one of the biggest border crossings in Canada, not a "pizza place". Deploying hyperbole like this isn't helping your case. Surely if the Ambassador Bridge doesn't qualify as critical infrastructure, nothing does.
https://www.cbc.ca/news/politics/marc-miller-path-forward-pr...
These railway blockades forced layoffs, and the CBC also notes that rail carries three times more than what trucks do in Canada.
https://www.cbc.ca/news/canada/nova-scotia/rail-shutdown-pro...
Instead, in this case, the Trudeau government met with the protestors and had a process of dialogue that resolved them peacefully after almost a year.
It wasn't the "entire CN rail network" (instead it was the Eastern Canada segment, comprising maybe 15% of CN's network). They don't claim that rail carries three times more than trucks do, but instead simply note that one rail car carries as much as three trucks.
And the blockade lasted approximately 2-3 weeks. Not sure what you mean by "after almost a year".
But let's be clear -- most of Canada was enraged about that. It was hugely expensive to Trudeau politically, and was a tenterhooks [edit - thank you fennec] situation because of the aboriginal file. Yet most of Canada absolutely wanted a stronger response and it hurt Trudeau in the election.
I honestly don't get these "but the rail blockade" or "but some BLM protest in some US city" responses.
I am saying that during the pandemic for the purposes of restrictions and exceptions, people who worked at grocery stores were "critical workers". It's a big old caution for using words like "critical" which are very vague in order to implement policy assuming it will be used for things you deem to be important, because you do things like that and now there's precedent. Grocery stores are critical infrastructure now so some picket line for a labor dispute at a grocery store is now legally arguably a banned protest.
When opposed to things, people are usually very happy to give away freedoms they don't realize might have adverse consequences in the future.