It's pithy, and I certainly wish more things were sold instead of licensed, but by this logic anything in a museum is also free for the taking.
James Acaster's comedy bit on the british museum comes to mind: https://www.youtube.com/watch?v=x73PkUvArJY&pp=ygUcamFtZXMgY...
Also, this is the same old false equivalence - taking a copy of something is NOT the same as taking the original, where only one instance of an item can exist and taking it deprives the original owner of their possessional.