Fun part is that US legislative branch did not have much say in creation of DMCA.
US executive branch back then was just lobbied by major copyright holders and they literally bypassed much of legislation process around congress by creating and signing international agreements instead.
By the time DMCA landed in congress there was very little that could be changed because US already had to honour intetnational agreements it's already created and signed.
Louis Rossman have a video on it:
Didn't the international agreements require ratification from legislative?