Canadians have a right to protest. Canadians also have a right to the enjoyment of their property. The former does not override the latter, and the latter was severely infringed upon by the occupiers. These protests caused hundreds of millions of dollars worth of damage. There is a $300M lawsuit against the occupiers in Ottawa, similar ones will happen against the occupiers of the Ambassador bridge. The bank accounts…
Weird, I missed the mechanism that involved violations of law, trials, and due process. Did you forget to put that in your list?
If you're worried about the groups using crypto to launder their money due to fines/lawsuits, then freezing accounts seems reasonable as well.
Laundering money is a great way in the US to get your account frozen without being arrested/tried/convicted. Because if you waited for the conviction, the money would be long gone.