Since internet law will only get worse, maybe it's time for a "real" technical solution to this. For example, if we had a standardized HTML element attribute to mark these widgets, browser/adblock makers could enable people to opt out of displaying them. It might look something like this:
<div legal-notice="cookies">...</div>
<div legal-notice="DMCA">...</div>
<div legal-notice="terms-of-service">...</div>
And ideally, there would be a JavaScript API to query this as well, maybe piggy-backed on the Permissions API: navigator.permissions.query({ name : 'skip-notice', topic : 'cookies' })