If there are no unconditional "musts" or "oughts," then there are no "duties" or "moral obligations." Which means there is no "morality," no "system of the principles and duties of right and wrong conduct." Morality (like natural law and natural rights, which are specific examples of "moral" ideas) is a myth invented to promote the interests/desires/purposes of the inventors.
Morality is a device for controlling the gullible with words. "You ‘must not’ commit murder!" Why not? "Because murder is ‘wrong!’ Murder is ‘immoral!’" Bunk! Murder may be impractical or excessively risky or just not worth the trouble. There are all sorts of reasons why I might refrain from committing murder, even when I would like to do it. But murder is not "wrong." Murder is not "immoral." And the same goes for rape, robbery, assault, battery, burglary, buggery, bestiality, incest, treason, torturing children, suicide, cannibalism, cannabisism, etc. Moralist Alan Wheelis says, "Morality is a wall. On it is written: Whatever passion impel you, whatever goal you pursue, beyond this limit you may not go…" But if morality is a wall, it is a metaphorical or fake wall, a wall built with words, not bricks, a wall that will not stop us amoralists. So if you want to be safe from us…you’d better build some real walls.
I reckon both this and the Bundy quote serve as a fine pair of addenda to my previous piece; as they say here in the East End, you don’t get many of those to the pound!