[parenthephobia]

They mean unauthorized copies of copyrighted works, not all copyrighted works.

A previous ruling of the CJEU covered a similar situation to your hypothetical, and ruled that once something is made freely available to the general Internet by the copyright holder, they lose the right to control who can link to that content. Of course, they retain the right to control who can copy it.

YouTube has a system in place for reporting infringing content. It's not necessarily very effective, but it's better - from a legal standpoint - than being told repeatedly that content is infringing and but intentionally and knowingly republishing links to the content each time another set of infringing copies gets taken down.