As a customer, not a seller, I'm now activelly avoiding Amazon as much as I can. Even if it is inconvenient.
Especially since I read this article about commingling (you need to register (free) to read): https://ftalphaville.ft.com/2019/03/20/1553085361000/Amazon-...
They are now dangerously close to be a monopoly AND a monopsony in way too many markets.
They just don't need to care anymore and it shows.