Normally reasoning is considered a good thing, as opposed to legislating based on emotion. It is your contention that Libertarians merely advance the appearance of reason, as opposed to actual reason? If so, there should be obvious holes or inconsistencies in Libertarian positions. What are they?
The philosophy of libertariansism is quite simple: it is unethical to initiate force against others. Self defense is fine, military attacks against aggressors is fine, and jailing (or, for that matter, executing) people who have hurt, cheated, or killed others is fine ... but "preventative" laws like those mandataing seatbelts or prohibiting drugs, or the armed robbery that is taxation, is not.