Well, it's quite simple.  Look who WANTED the government shutdown.

(1)  The Tea Partiers say the Dems will be blamed, but LISTEN to them in this video.  They have no problem with a shutdown (one guy even has a sign urging shutdown):

(2)  From the Washington Post:

House Republicans huddled late Monday and, according to a GOP aide, gave the speaker an ovation when he informed them that he was advising the House Administration Committee to begin preparing for a possible shutdown.

Yaaaay!

UPDATE: And the new WSJ/NBC poll tells the tale: a majority of Republicans prefer a government shutdown to a budget compromise.