- extremely poor pay and conditions for Amazon's workers
- dominance driving smaller less-efficient enterprises out of business; this isn't just sentimental: efficiency is about driving cost down, including labour costs. SMEs employ more in aggregate than the large businesses replacing them, so typically Amazon is unlikely to be a net job-creator.
- Amazon pays very little corporate tax, both by running low-profit/high-cashflow, through other methods particularly for it's operations in Europe, and they used to evade sales tax almost completely in the US. Tax = vital public and social services for citizens, so that's a big net negative.
- Jeff Bezos' personal tax story is not dissimilar.
etc. etc.
This isn't a criticism of Bezos or Amazon, but of large multinational corporate entities and their contributions to "charitable" causes in general. CSR is always an a attempt to offset something.