The DMCA modernized copyright law for the digital age, creating protections for network providers against infringement by their users, and making illegal circumvention of new digital copyright enforcement schemes. What part of this act do you think applies to throttling network connections, if that's what's happening here?

How then is unlocking a cellphone a violation of a copyright enforcement scheme?

That's a separate discussion and a complex topic. A starting point if you're interested: https://www.eff.org/my/node/55941

Blocking a CDN? I can't imagine, you could make up any reason as a user to justify it.

No, it's probably some kind of terrorism though.

No, it is not.