Why would they vote to recognize Islam but not Christianity?

From FRC

Last night, the House of Representatives voted on a benign resolution, H.R. 847, "recognizing the importance of Christmas and the Christian faith." Not surprisingly, the initiative, sponsored by Rep. Steve King (R-Iowa), passed overwhelmingly--despite nine Democrats who voted against it and ten members (nine Democrats and one Republican) who voted "present."

Interestingly, the 17 Democrats who voted either "nay" or "present" weren't motivated by the so-called "separation of church and state," since they were seen formally recognizing Islam back in October. H.R. 635, sponsored by Rep. Eddie Bernice Johnson (D-Tex.), recognized the "commencement of Ramadan, the Islamic holy month of fasting and spiritual renewal, and commended Muslims in the United States and throughout the world for their faith." Perhaps these congressional scrooges took issue with the wording of the Christmas resolution.

Or did they have a bigger problem rejecting "bigotry and persecution directed against Christians, both in the United States and worldwide"? Maybe they disagreed with the expression of their "deepest respect to American Christians and Christians throughout the world." Whatever their reasoning, these 17 Democrats have some explaining to do.

How can they possibly promote Islam in the same breath that they attack Christianity, the very faith that buoyed our nation at its founding? The following voted "no" on H.R. 847 and "yes" on H.R. 635: Reps. Gary Ackerman (D-N.Y.), Yvette Clarke (D-N.Y.), Diana DeGette (D-Co.), Alcee Hastings (D-Fl.), Jim McDermott (D-Wash.), Bobby Scott (D-Va.), Fortney Stark (D-Calif.) and Lynn Woolsey (D-Calif.). Those who voted "present" on H.R. 847 and "yes" on H.R. 635 include: Reps. John Conyers (D-Mich.), Barney Frank (D-Mass.), Rush Holt (D-N.J.), Donald Payne (D-N.J.), Janice Schakowsky (D-Ill.), Allyson Schwartz (D-Pa.), Debbie Wasserman Schultz (D-Fl.), Peter Welch (D-Vt.) and John Yarmuth (D-Ky.).