The ones passing it now first care more about the money they received, and second, they actually believe what MPAA/RIAA are telling them. That this is absolutely necessary and that they will only use it against serious offender. The thing is, if SOPA existed a few years ago, Youtube could've easily been considered a serious offender. No question about it.
Viacom filed a $1 billion lawsuit against Youtube, because it had so many of its videos posted by users. Also, other sponsors of SOPA, such as NBC, would've wanted Youtube dead, too. After all, the only reason they started Hulu was to fend off Youtube, even though they didn't like having Hulu at all, since it undermines their real cash cow, the old traditional business model.
Viacom filed a $1 billion lawsuit against Youtube, because it had so many of its videos posted by users. Also, other sponsors of SOPA, such as NBC, would've wanted Youtube dead, too. After all, the only reason they started Hulu was to fend off Youtube, even though they didn't like having Hulu at all, since it undermines their real cash cow, the old traditional business model.