Thats the same POS that called Linux "un-American", amongst other things. Two things -
1) She/he is not joking. There is a political reasoning that actually gained some power within the white house for a time that subscribes to this type of thought process where everyone who subscribes to views other than thier own twisted reality are considered "the enemy".
2) There are several whack-jobs exactly like this (Ann Coulter, for example) who do so for ratings and because people have a freakish desire to indulge them. The higher PHR, the more sponsors they get=more $$. Because of the way this system is allowed to operate, human refuse like this gets rewarded and encouraged.