I direct your attention to the "industrial" part of the "military-industrial complex" statement. Giant telecoms and media companies, protecting their aging and anticompetitive business models, paid large sums of money to the legislature to get laws passed to make it a criminal offense to circumvent their dying business models and to protect their entrenched positions.
So, yes, the reason that we have the DMCA is because of big content and big telecoms - a large part of the "industrial" arm of the "military-industrial complex".
Thank you, drive through.