I disagree with both the premise and the conclusion. Even if skipping corporate stuff for a day is only a mild inconvenience, that is still obviously not convenient. Second, there’s no reason to suspect convenience should strongly impact effectiveness. How much did it inconvenience anyone to boycott South Africa in the 80s?
Maximizing effectiveness for unit of effort is smart. And when a tiny change in share price can make a big difference in CEO compensation, we’d be complete masochists not to use that in our favor. But also even if you’re into maximizing pain, if we wanna talk about permanently going after these corporations then it’s gotta start somewhere. And it’s best to start with getting people to do what’s easy.
For one why limit it to the North Atlantic? Japan, South Korea, and Australia should get in on the action too. And France and the UK can help them all get nukes (yes I mean that seriously - US and Russia being the only large nuclear powers is a disaster). Now would be a great time for the stable democracies (not the US) to create a new alliance.