Comment by thayne
Probably not copyright infringement. But it is probably (hopefully?) a violation of CFAA, both because it is effectively DDoSing you, and they are ignoring robots.txt.
Maybe worth contacting law enforcement?
Although it might not actually be Amazon.
Big thing worth asking here. Depending on what 'amazon' means here (i.e. known to be Amazon specific IPs vs Cloud IPs) it could just be someone running a crawler on AWS.
Or, folks failing the 'shared security model' of AWS and their stuff is compromised with botnets running on AWS.
Or, folks that are quasi-spoofing 'AmazonBot' because they think it will have a better not-block rate than anonymous or other requests...