I don't know if Libertards really think of it as lying. I thinks it's possible they just think of their version of an "ideal world" so much, a world which Completely ignores reality, that if they pursue their fantasy hard enough, it will become true, and we'd all be so much better off.. No more criminals. No more hunger or disease. No more war. Uncle Gubmint Promised he'd do these things, so . . .