You are claiming that absurd conflicts within a political party mean it cannot be taken seriously, but the Democrats have the "blue dog" faction and a prominent

You are claiming that absurd conflicts within a political party mean it cannot be taken seriously, but the Democrats have the "blue dog" faction and a prominent representative who recently proposed a fifty dollar an hour minimum wage law and the Republicans stretch from Romney to the colorful current party leadership. If you were really thinking about whether or not to take Libertarians seriously then you might take some lessons from the book The Righteous Mind that points out moral axes and notes that liberals tend to focus on care and harm, conservatives focus most on fairness and cheating, and libertarians with their focus on liberty are just behind both of those. It might also be interesting to consider the content of Libertarian meetings which are often dominated by discussion of cannabis legalization, right to repair, and arguments for a universal basic income.