If anything, this an argument for single payer. Your health care should not depend on your job.
Source: Grew up in Europe. You can't fake civilization.
The liable party has little to do with insurance structures. An employer is liable for injuries even if they aren't providing health care insurance.
I’m thinking of quitting my job and going solo but not having a safety net of healthcare makes me really worried. Especially with a toddler.
And if you are going to go solo and plan to live off savings for a while, Marketplace subsidies are based only on income. So even if you have $1m in the bank, you will still get the subsidies. The sweet spot is to make just enough to "not" qualify for your state's medicare program. For a family of 3, depending on where you live, you could make $50k and still get excellent coverage for a few hundred dollars a month.
The fucked up working conditions in Amazon warehouses are well documented at this point. The only question is why they're not getting their asses sued off, especially in such a litigious society.
They probably have some arbitration clause in the contract, also making a mockery of the concept of justice, not only worker's safety.