Small comment - actual voters' opinions isn't necessarily enough, if voters aren't informed about the actual consequences/implications of the legislation.

When SOPA came up in discussion recently amongst a few folks I was talking to, as soon as they heard the full spoken name of the bill - 'Stop Online Piracy Act' - they began to put their support behind it. That's how quickly and easily opinions can be formed - it took some calm and open discussion before they began to even consider it as a potential gray area.