It would be nice but it's functionally impossible due to the size and spread out nature of the US. Half the country could shut down and the other half wouldn't even feel it. You'd need every port city and shipping company, ship rail and truck, you'd need virtually every service worker, you'd need a majority of financial institutions, in every major city in every state. And they'd need to hold for weeks. It's not possible, and wouldn't be even if we didn't have the awful dog-eat-dog antisocial bullshit culture we have.

Only if we use the free time to physically hurt the people in power. If everyone just ends up sitting at home or on the side of the road it won't accomplish much of anything especially since they know we'll eventually return to work and they can outlast us.