Libertarianism: "An" ideology" or "The" ideology?

I always advocated that libertarians attempt to position the libertarian ideology as a "hybrid" or "combination" ideology, one which combines positions associated with modern "liberalism" and conservatism, as a way of enabling people to understand, as a way a making the ideology seem less unusual. But radical libertarians would have none of this, because this would make libertarianism appear to be AN ideology, one of just several competing schools of thought, rather than THE ideology, the only school of thought permissible.