I don’t know if the Keebler cookie co. has taken an outright stance supporting pro-life causes, but this site
http://gsboycott.blogspot.com/
mentions several Keebler cookie varieties as alternatives to the Girl Scout cookies.
(Note that Keebler supports the American Red Cross by donating snacks at blood donation centers.)
The Keebler cookies are just as taste addictive as the GSA versions and they are available all year around.