There have been lots of books written about how socialists have a stranglehold on academia (at all levels)and government bureaucracies. Has anyone heard of any literature on lefty control of mainline protestant churches in north america? Must be something out there.
And they wonder why they're losing membership (and relevance).
I don't recall any works which deal with the multiple churches.
My favorite for the Catholics was Monsignor Freddy Delgado's LA IGLESIA POPULAR NACIO EN EL SALVADOR and a series of newspaper editorials by the assasinated ex-Jesuit (still Catholic) Francisco Peccorini who the Left murdered (at age 72) on his way to give a television interview in El Salvador. As M. Stanton Evans wrote, it is funny how you never hear the term "Leftwing Death Squad".