No it ain't. Bitch. Which is why leftists are very quick at denying reality in practice. And so as to deny even those realities that may be proved through praxeology, they go so far as to using relativism to deny reality in theory, too. Unhappily for them, reality isn't impressed by their denial, and keeps hitting them. This would be but a good laugh and a good riddance, if only they didn't try hard to take the other people down the hill together with them.