Are the canvassers and organizers legitimately from Alberta or are they
?
If they are from Alberta, they would have had to declare their purpose for visiting to the US CBP at the port of entry.
If they said to do political organizing of non-usians and were allowed in (rather than be put in ICE detention), then that corroborates the usian regime's complicity.
If they did not truthfully say their purpose, then that is grounds for ICE to lock them up.
If any of the canvassers are Usian, that wouldn't be good optics for the separatists.