Egads these people are idiots. Did it ever occur to Cantor that perhaps the Democrats won't really insert anything in the bill unless they 1) feel that it's harmless or 2) they can negate it some other way? And, if you don't "insert" anything you're not obligated to vote for it.
This is about as stupid as Lindsey Graham saying that if he votes for Cap-n-Trade, he believes the Democrats will look at drilling.
BINGO!