When the mass media lies, which is does constantly by constantly making up "facts," who decides who has a mind parasite? Rachael Maddow? Big money investors in government, as the research has shown, dominate public policy as well as public information and this is driven by the for-profit capitalist ideology, a mind parasite if there ever was one. So how do we treat this? We have to take the money power away from the private profit-motivated players who rig the system. I expect that is not what you are talking about, you are talking about the divisions that the current money system promotes to keep people from turning their attention onto the money power and trying to make one side right and the other wrong by looking only at a slice of the evidence that supports your side, the "sane" side. Sorry, your just not thorough enough in your analysis, leaving many facts out. "Willful believing" is what the system demands, schools and media support it.