From that though it sounds like it is possible, given a judge willing to take some liberties with interpretation of SOPA. Unless it's explicitly not possible it's still fair game to suggest that the bill is opening up that possibility.
Given that content producers do things like claim every pirated copy as lost income even though in reality they know this isn't the case I think taking the powers given by SOPA to the extreme case could be a good tool in the argument.
Wait, #2 and #4 would also have to be true for this to be possible. To answer your question, it's explicitly not possible, because Facebook.com is domestic and is not primarily designed or operated to enable or facilitate infringement.
1) thepiratebay isn't targeted by SOPA.
2) Facebook isn't a foreign site, and not targeted by SOPA.
3) A court would have to agree that the site be taken down.
4) The entire site wouldn't be taken down because it isn't primary designed or operated to enable or facilitate infringement.