I have not seen any convincing evidence that Amazon’s warehouses have “terrible working conditions”, do you have a source that might change my opinion?
https://revealnews.org/?s=amazon
A search for "Amazon working conditions injuries" on DDG or Google will return many of those, but also follow-ups by many media houses considered to be reasoned/reliable, rather than rabid and ranting.
Anecdotal, perhaps, but these anecdotes are there in significant numbers.