You quoted:

In a free society “all traditions have equal rights and equal access to the centres of power”. (SFS, p. 9), Feyerabend

That is unworkable since it results in a deadlock of values. Let me try to explain: out of “all traditions” let us consider tradition X. But some difficult person (like me) objects saying I believe in tradition “anti-X”. Remember that both “X” and “anti-X” are part of “all traditions” and they have “equal access to the centres of power”. Since no compromise is possible between X and anti-X, then what? Deadlock! (or we could have abortion legal one day and illegal the next?) Basically, I don’t subscribe to the view that all points of view have equal worth in all contexts. And power and politics contain value judgments themselves, so you can’t say all traditions have equal access – what about anarchism??

Feyerabend’s statement and themes have a certain similarity of Nietzsche’s concept of the “last man” and his supposed views:

Who still wanteth to rule? Who still wanteth to obey? Both are too burdensome.

No shepherd, and one herd! Everyone wanteth the same; everyone is equal: he who hath other sentiments goeth voluntarily into the madhouse.

“Formerly all the world was insane,”—say the subtlest of them, and blink thereby. (Thus Spake Zarathustra)

Naturally, Nietzsche was opposed to this view. Considering his writing, it is ironic that Nietzsche did go mad.

“When such conflict occurs the libertarian response is not to restrict or dilineate freedoms. Rather the ideal is to bring about consensus.”

As you mentioned, Libertarianism could use consensus to resolve disputes. This is effectively giving a right for people not to have force initiated against them (without their consent). It is therefore assigning natural rights. The only political system that is based on natural state of affairs is anarchism (as far as I can see).

AC1