Hate groups and sites should be challenged exposed, regardless of their target population.
Islam is a hate group of 1.2 billion members. Yet you seek to cover for it.
SPLC posts many of those same individuals on their site, along with what they've said and done to promote hatred. They do the same with racists and anti-semites such as David Duke, Michael Savage, Kevin MacDonald etc. etc. I don't think anyone regards those as "hit lists".
The ADL, for example, maintains a watch on anti-semitism incidents and individuals promoting anti-semitism and related conspiracy theory crap. CAIR is doing nothing different than what these other groups do - lifting stones and exposing what lies underneath.
The SPLC is a hate group - no denying it. The SPLC may have a different target than the KKK, specifically Christians, Libertarians, Republicans, and anyone opposing the Obama agenda; but the methods used by the SPLC are virtually identical. The old KKK burned a cross on your lawn, the new KKK runs a hate campaign in the NY Times and lynches you on MSNBC.
So it makes perfect sense for those who brutally cut the heads off of people on YouTube to join forces with this anti-Christian hate group.