The point is, if you don't have the context, you are operating from a position of ignorance. What if conditions do suck and are terribly miserable at Amazon's warehouses? But... what if, despite that, the conditions are actually better than typical warehouse jobs? In that case, by singling out Amazon, you are actually punishing them for having better warehouse conditions than anyone, and helping their competitors where the workers are worse off.

What you write is true, but leaves out the fact that taking down Amazon or putting restrictions on Amazon's warehouse operations can unintentionally make things worse for low-skilled workers if their other employment options are worse than working in an Amazon warehouse.