I think what we need to work on is improving the political clout of engineers, not destroying hollywood. We've won this one (I hope) but it took rather extreme measures. Blacking out wikipedia isn't something which can be done every time congress threatens to do something stupid. It's a bit like going on strike - a negative act which can turn people against us if overused. We need mechanisms which can influence polit…
The reason this worked out right (still crossing fingers) in my opinion, was because much of the tech community were on the same side in this one. But there are other occasions where this would have been a mess. So, the message would not have been clear. The congress and media would have thought "some people say yes, some people say no... nothing new".
[editted to add] You are right that division makes the message harder to put across. But it's not as simple as that. Take software patents: some people think software patents should be banned altogether, some people think they should be limited to five years, some people think 'obvious' patents are the problem. But most people think that the system is broken. As engineers, our automatic response is to start figuring out what the solution would look like. But the roadblock is not a lack of a solution, but lack of political influence. We can't agree on a solution to the software patent problem, because we won't find out which one works until we get to try one of them out. And the roadblock to doing that is lack of political influence.