My main reason for shopping from Amazon is that I do not want to sign up separately on many retailer's websites. E.g. target, best buy, Walmart, ... If there i

My main reason for shopping from Amazon is that I do not want to sign up separately on many retailer's websites. E.g. target, best buy, Walmart, ... If there is a single sign-on option which provides good enough data safety & privacy, lot of my shopping will move away from Amazon to this virtual YC 2019 company.