"Originalism" works very poorly with any text; for centuries, conservative scholars have tried to claim the "original idea" of the Bible, and what has it produced? A myriad of opinions and conflicts.
And it doesn't work any better with the Constitution, because we simply don't know; we can only guess. Sure, a good guess, but a guess nonetheless, and an educated guess at best.
The "originalist" hides behind the term and doesn't have the guts to simply say: This is what I think it says" rather than the silly suggestion, "It says THIS!" and it requires no interpretation (except mine, of course, which is no interpretation, because I know the original meaning).
Hogwash, which is pretty much what the whole conservative bandwagon is all about.