There was a leaked memo showing that Amazon itself is aware of this risk to their business: https://www.vox.com/recode/23170900/leaked-amazon-memo-warehouses-h

There was a leaked memo showing that Amazon itself is aware of this risk to their business: https://www.vox.com/recode/23170900/leaked-amazon-memo-warehouses-hiring-shortage https://www.vox.com/recode/23170900/leaked-amazon-memo-wareh...