Forgiveness may be harder to come by.
I mean it definitely will, at the very least because forgiveness can only truly come after the US admits how fucked up it is, and if the ruling class of the US genuinely did that I think it would put Canadians into a state of shock where they wouldn't be able to access longterm emotions like that.
Canadians would just be trying to compute US society not choosing bigotry over admitting being wrong and making material amends and for a time I imagine it will be very disorienting for Canadians.
Can you truly feel forgiveness when you are overcome with vertigo induced by the entity you are trying to forgive?