Liberalism is a mental disorder because, liberals create false gods to worship. This does not mean conservatives can't or don't do it it is just far more common among liberals; as they are much more likely to be atheists.
People are born with an instinct to worship God /a higher power, for an athirst this creates a cognitive dissonance, so they create god(s) in their subconscious; Government, earth, money or they make themselves a god (think Bill Gates). Those who chose to worship government become socialists/Marxist. those who worship individuals become Ayn Rand libertarians, those who worship earth/environment become radical environmentalist (often aligned with Marxists) and so on.