You want to stop the RIAA and MPAA? It’s really this simple.
Stop buying RIAA-produced music. Stop buying movie tickets to MPAA-produced movies. Stop supporting the content industry in general, who produces vapid mind-rotting “culture” and abuses artists and technical people alike.
10% of us doing this would do more to hurt the industry than if every website opposing SOPA/PIPA went dark for a month.