This is not a partisan issue. One of the most vehement opposers of SOPA is Darrell Issa, a staunch California conservative. On the other hand, Dianne Feinstein, whose constituency includes the Bay Area and Silicon Valley, is for the bill.
Perhaps I should have emphasized "authoritarian" more.
And Sen. Feinstein's constituency is the entire state of California. She has received a lot of money from the entertainment industry, including the MPAA, Disney, Sony, and others.
But you are correct: this is not a partisan issue. I was simply trying to guess at the motives of GoDaddy's CEO. Since it was a guess, it will obviously be imperfect.
But you derived your guess from his political party. This is fundamentally incompatible with thinking that this is not a partisan issue. So your guess isn't consistent with your own beliefs. (Unless you've changed them since the other comment.)