It's important to remember that the Left (and Liberalism) are based and founded on fallacies, mistruths and downright lies that they actually believe. This is the realization of George Orwell's character, Winston Smith, when he comfortably holds two entirely opposing viewpoints in his mind and is actually able to believe both! Yeah, it's a kind of programmed mental illness or, at the very least, a self-inflicted congnizant associative disorder that so warps the person's mind that they're wide open to believing anything that anyone tells them, providing that it falls within the very limited boundaries of a specific and deeply ingrained agenda or set of agenda-driven ideologies, not only stripping them of their own cognitive self-identity but actually replacing it with an ego-driven cognitive pseudo-double of sorts, thus replacing the original cognitive personality with something derived from pure programming.