Great opinion article.
I especially like the ending, it’s what terrifies me as well:

The most disturbing aspect of the foreign traveller freakout, to my mind, has been watching smart people cheer on the government making people’s lives miserable for the crime of returning home. And all essentially for their own entertainment. It’s a terrifying instinct that can lead to some terrifying places.

Every restriction on Canadians’ freedoms implemented to fight the pandemic, including the many that were in my view entirely justified and several that were in my view not — Quebec’s curfew being the most abominable — is now more likely to be implemented in future in any kind of crisis: pandemic, terrorist attack, civil disobedience, whatever. Governments are not known for relinquishing powers freely given by their constituents. Canada is not special in this regard. Foreign travellers, foreign vaccine recipients, are not the enemy.