'I'm a little angry': Canadian firms boycott US products
bbc.com
bbc.com
Although thanks to the Jones Act those waterways aren't used nearly as much as they could be. Only about 5% of US cargo is over river, versus 70%-ish for lorry and 15%-ish for train.
Having said all that, the more optimal transportation routes and corridors in Canada have traditionally been North-South in several places due to the interconnectivity of Canada's economy with that of the U.S.A., which is undergoing tremendous strain these days.
They interview a woman that MIGHT stop importing, but "These tariffs could be gone any day. Let's see how it all unfolds, then we'll start making decisions,".
Until they act it’s just gossip propagated by low quality journalists (Sam Gruet).