

I don’t think that’s the intention amongst any of the people I know who are avoiding US products currently, which is quite a few. We’re a relatively tiny population size / economy to the United States, and pretending like we’d have the ability to make the states “suffer” with our actions is pretty silly.
Reasons I’ve heard tend to vary. Some just don’t want to support a foreign country that is acting hostile towards us. Many who are looking at the digital side, are increasingly avoiding US tech because it’s ignoring Canada laws and imposing US requirements / ideological crap on us – the AI tools MS uses to probe peoples OneDrive accounts, for example, banning people based on US government trends. This is similar to some others, who want to remove US products because the US is just unreliable and not suited for anything you rely on anymore, as the availability of anything could be impacted by Trump’s whims. The US isn’t a stable, reasonable or rational trading partner at this point - as demonstrated by how tariffs are broadcast / set. There’s even now a non-zero chance that the US may actually attack other western countries, which previously would be unthinkable – the foreign influence campaigns in Greenland, and the likely influence campaigns in places like Alberta, as well as the Trump administrations indication of potentially attacking “cartels” in Mexico without Mexican involvement, are easy measures there, as is Trump’s own comments about selling sub-standard military assets to allies because “Maybe they won’t be our allies forever”. Heck, half the USA cheered Musk goose-stepping around and doing Nazi salutes earlier this year, though it feels like a decade ago with all the crap coming out of the states currently.
So long and short, it’s more about our own safety and security, than it is about ‘hurting’ the United States. And for most, it’s not something that will go away if you all manage to elect a ‘sane’ democrat or republican next time around. The merit and temper of your government/country’s sorta been exposed, and it’ll take decades of ‘sane’ foreign policy to recover.
Like the USA under the current administration / trends? Do allies attempt to annex allies via economic warfare and separatist influence campaigns? And if the states can ‘flip’ from ally to adversary, why not others?
The current global situation means that self-reliance for critical sectors is of paramount importance – trade and globalism is fine for non-critical things, and for general collaboration on broader initiatives such as global warming/climate change (for countries that agree on it). Ferries, as civilian infrastructure, are not individually critical - if they fail for some reason, it’s “bad”, but it isn’t military failure levels of bad. Today we may think of Germany as an ally, for example, but the AFD and far right have significant support there, and it’s entirely plausible that within the span of the sub contract Germany will trend more like the USA is today. It’s also plausible, although still relatively unlikely, that China could expand its borders and push for SK to be absorbed by NK as part of a regional conflict wherein the USA doesn’t bother to support its traditional allies / values.
Additionally, I have far more confidence in Canada’s ability to take on civilian ferries, and their maintenance in the face of global uncertainties, than I do in Canada’s ability to maintain foreign made military vessels with far more complex systems. Ergo such specialties should be built up and maintained in country, by purchasing assets from internal companies.