Bit torrent is a genuinely useful tool, that happens to be useful for both fully legitimate purposes as well as other uses.
I'd accept some lobby group applying pressure to make bit torrent "illegal" right after they get majority public agreement that cars should be illegal (bank robbers use them to make their escape!) and spray paint (graffiti taggers use it!)
He also wants DMCA's safe harbor provisions curtailed.
They want to levy egregious fines against anyone using BitTorrent for piratical ends, and make ISPs just as liable as their users. They don't need to outlaw BitTorrent when they can ban people from the Internet at will.
And furthermore they're not stupid. They know that BitTorrent is just a protocol, and it's presently just as easy to get pirated content over plain old HTTP as BitTorrent.