To begin with, how odd is it that they'd invoke Shakespeare in this context? "We need stronger copyright or else we won't get the next Shakespeare" is like arguing "We need the designated hitter, or how will we ever get the next Babe Ruth?" In a copyright-free world -- not that I'm advocating such a thing, but hey, you brought it up -- we'll get the next Shakespeare the way we got the last Shakespeare, in a copyright-free world. The first copyright statute, the Statute of Anne, wasn't passed until 1709, long after Shakespeare was a-moulderin' in the grave. [That's what we need a name for -- this kind of absurdly misplaced historical argument]What's more, old Billy the Shake's great plays were largely based on works by his contemporaries and forebears -- works that would have been illegal "derivative works" had our contemporary copyright laws been in place then.
If you want to read something by an author who understands both copyright and Shakespeare, try James Boyle's "The Search for an Author: Shakespeare and the Framers."
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.