I just checked my copy of Stefan Aust's
Baader-Meinhof: The Inside Story of the R.A.F. Over 450 pages, written by someone who personally knew the founders of the R.A.F. and eventually got on the wrong side of the gang. (It was Aust who retrieved Ulrike Meinhof's 2 kids and returned them to their father - when she was trying to take them to a PLO training camp in Jordan. Of course, the PLO were all atheists...)
Aust's index doesn't mention "atheism" once. Or for that matter, religion. Neither do entries for the main R.A.F. players, like Baader, Ennslin and Meinhof.
Using Google, I mostly found the R.A.F. linked to atheism on right-wing sites. Which seems to be where you get most of your comedy material about atheism.
If I wanted to throw your own simple-minded guilt by association right back at you, I might mention the family background of Andreas Baader's main squeeze, Gudrun Ennslin, and suggest that it drove her over the edge:
...Her father, Helmut, was a pastor of the Evangelical Church in Germany. Ensslin was a well-behaved child who did well at school and enjoyed working with the Evangelical Girl Scouts, and doing parish work such as organizing Bible studies. (Wikipedia)
Overall, the R.A.F. was incredibly muddle-headed in its political views and I don't think it had any brain cells left for religious philosophy, or the lack of it.
And they were apparently dupes right from the beginning, in 1967. From a review of the excellent 2008 German movie
The Baader-Meinhof Complex:
Most astonishing of all, perhaps, in May of this year (2009) it was revealed from the same files that Karl-Heinz Kurras, the twitchy cop who shot Benno Ohnesorg on June 2, 1967, thus igniting the whole train of events, was all along an informer for the Stasi and a card-carrying member of the East German Communist Party. (Herr Kurras, now 81, was interviewed and made no bones about it.)
This doesn’t necessarily prove that the whole sequence of events was part of a Stasi provocation, but it does make those who yelled about the “Nazi” state look rather foolish in retrospect. (Rudi Dutschke, it now turns out, left a posthumous letter to his family stating his fear that “the East” was behind his own shooting. Dutschke’s family has called for an investigation.)
What this means in short is that the Baader Meinhof milieu, so far from providing a critique of German society, was actually a sort of petri dish in which bacilli for the two worst forms of dictatorship on German soil — the National Socialist and the Stalinist — were grown. It’s high time that the movie business outgrew some of the illusions of “radical” terrorism, and this film makes an admirably unsentimental contribution to that task.I know you'll want to read the whole thing, since it's from one of your favorite writers - Christopher Hitchens:
http://www.vanityfair.com/politics/features/2009/08/hitchens-guerrillas200908#gotopage2