Despite just about everyone telling him that his plan to defeat ISIS using a vast mercenary army is really, really terrible, Bill O'Reilly is not backing down. (Surprised?)

On Monday, O'Reilly lashed out at frequent foe Stephen Colbert, who had devoted a segment to ridiculing his scheme.

Colbert, O'Reilly groused, was a "dumb" person with "no bleeping clue" (he actually said "bleeping") about what to do in the Middle East — unlike O'Reilly, whose plan has the support of 70 percent of respondents in a poll on www.billoreilly.com.

WATCH: