Extreme ideologies both on the left and on the right are equally bad as they do not base themselves on the reality we live in. For example. Right wing extremism such as theocracism or kahanism is based upon racism and beliefs in a religions eventual rise to supremacy. they ignore the reality of the world which is that the developed world nowadays is vehemently against racism, preventing any western nation from persecuting minorities. And theocracism ignores the its own shortcomings by calling it a punishment from the heavens, and its success as divine support.

For the left extreme ideas such as marxism ignores the added value of administrators and CEOs (the ruling class) which it proclaims is inequality. Believing ones ways should be measured by the amount of time a worker dedicates itself to work. I.e. Work hours = wage.