There are plenty of good reasons for this, for starters:
1. Libertarians bastardize "Rousseau" and promote the lie and myth that people are "naturally" good; not only is this antithetical to the philoosphy of the law and easily debunkable to the point that only denialism is the option, this also means that a libertarian is pro-pedophilia by default (e.x. the act of molesting a child is "natural", libertarians believe anything "natural" is good", therefore libertarians by that definition are in favor of pedophilia).
I'd argue this is a good enough reason by default, and that no others should even be necessary. Much like the degenerate left, the degenerate libertarians (a subset of the radical left) are a blight upon our existence and should not be allowed to perpetuate their lusts for feral vices such as sodomy, pedophila, and other forms of social illness; they are nothing but anathema to a true right-wing nationalist platform grounded in virtue, nation and state, above the feral and inferior ways of degenerate and decrepted mongrols who fancy them selves "individuals", when in actuality they are but akin to an infectuous disease whose "individuality" can easily be blighted with the barrel of a loaded gun if nation, state, church, God, virtue deem it necessary.