"Everybody's looking for something Some of them want to use you Some of them want to get used by you Some of them want to abuse you Some of them want to be abused." Eurythmics https://www.cbc.ca/news/politics/convoy-protest-ottawa-sunday-impasse-1.6341548
The truckers and their supporters are not seeking removal of vaccination mandates. Even the most ignorant among them knows that the Americans are not allowing anyone into their country without proof of vaccination, so even if Ottawa dropped the mandates, truckers would not be allowed into the US.
This is about self denigration, show the world the worst of their character.