I doubt many people have a problem with the <i>concept</i> of copyright.  There are a huge number, though, who have a problem with the <i>implementation</i> of copyright, especially when they're well aware of its original intent. (See: <a href="http://press-pubs.uchicago.edu/founders/documents/a1_8_8s12.html" rel="nofollow">http://press-pubs.uchicago.edu/founders/documents/a1_8_8s12....</a>)