SOPA has a lot of haters. That's a fact. However, if you look at the DMCA and its flaws, SOPA is just a natural progression.
Maybe the better alternative is to FIX DMCA first before moving to more draconian measures like SOPA?
Check this article out and read the figures Google supplied regarding DMCA. It's quite sobering.
http://gigaom.com/2011/11/27/with-fr...ho-needs-sopa/