See also: https://www.eff.org/deeplinks/2013/03/ustr-secret-copyright-...
Disney might be a force behind it, but it's literally true that Europe has been the leader in extending copyright terms, both the original extension last century, and then the most recent push as well.
Okay, based on the history and timeline of copyright law, that means you're saying that the corporations pass the most restrictive copyright laws that they can in Europe, and then US law is lengthened to harmonize with Europe through trade agreements (except most recently, where the US declined to participate in the trade agreement with Europe which would have adopted an even stricter copyright law).
E.g., all works by authors who died in 1948 would now be public domain, but the US often requires that they were published before 1924.
Now in 2018 we are in a similar situation: again, europeans are passing new legislation that gives teeth to copyright by introducing censorship machines.