I really have to disagree. These laws were made with bad intentions. Hear me out for a moment.
Murder is wrong. Murder is against the law. Murder still happens. Even assuming the intention was good in broad strokes, which I will dispute in a moment, the idea that we will continue piling laws up against murder until it goes away entirely is inherently abusive toward our liberties and impossible to actually enforce. Murder is illegal and penalized with incarceration or death depending on where you live. Nobody likes murder, but we arent clammoring to make it *more* illegal.
Likewise, copyright infringement is already illegal under the relevent codes. Making it *more* illegal simply blurs public perception about what crime is being committed. If the law simply made it more illegal, it's already in the wrong, but it does worse than that.
Imagine if, in order to stop murder, we created a law that said anyone who suspects someone of murdering their family member may hold them prisoner, possibly indefinately, with the burden of proof on the accused to show that he is not guilty. We would be legalizing vigilante enforcement at the hands of the most biased party, with the presumption of guilt until proven innocent.
This is what SOPA does, and it is incidious. It is not establishing the rule of law. It is using the cloak of law to legitimize lawless percecution. And I don't think for one moment that it's accidental.