Text: Isolationist sentiments don't prevent DeLay and Co. from saber-rattling; and given the belligerent stands they often take toward countries like China or Cuba, petulant unilateralists might be a better term for them.
Entailment: DeLay and the others aren't afraid to disregard isolationist preferences in favor of saber-rattling.
Contradiction: Isolation sentiment has gone a long way towards preventing DeLay and the others from engaging in saber-rattling.