https://www.iup.edu/archives/coal/unions-and-mining/the-coal...
https://iup.edu/archives/coal/unions-and-mining/the-windber-...
Even non-union protections directly by government like sick leave could be harder as businesses lobby that they can't afford to provide it at this time. (In my view, this pandemic shows we can't afford NOT to. But it's a debate to be had.)
I think people have a lot of control over how this goes, I'm not saying it's hopeless. Just saying that I don't think it's a naturally-occurring phenomenon. The Great Recession wasn't great for the labor movement.
If Amazon’s the only game in town and Amazon workers go on strike, you have problems that can’t be resolved by competitors rushing in to fill the gaps.