I know the common theme is to blame ignorance and while in many cases that's true, but we often overlook other causes. Imo, it's sometimes due to ressentiment, "sense of hostility directed toward an object that one identifies as the cause of one's frustration, that is, an assignment of blame for one's frustration. The sense of weakness or inferiority complex and perhaps even jealousy in the face of the "cause" generates a rejecting/justifying value system, or morality, which attacks or denies the perceived source of one's frustration. This value system is then used as a means of justifying one's own weaknesses by identifying the source of envy as objectively inferior, serving as a defense mechanism that prevents the resentful individual from addressing and overcoming their insecurities and flaws. The ego creates an enemy to insulate themselves from culpability." A lyric from one of my favorite songs, "Lunatic Fringe", sums it up nicely. 'Cause you got to blame someone for your own confusion.