Hmm, based on my research and this thread there actually does seem to be doctrine/dogma -- what about Lavey's writing or the writing on the ONA site? One of the most given reasons so far in this discussion against non-consensual sex is that Lavey wrote against it.
LaVey and the ONA speak for all LHP followers? That is strange as some of us are theistic or spiritual and most are against human sacrifice. The ONA speaks for fascist Satanism usually, tied to terrorism. Whether this is actually true or not, the ONA love the attention. Pseudo-satanism is not LHP. As for LaVeyan Satanism, it definitely does not speak for everyone. Rape is bad because it is bad, not cause LaVey said so. Unlike RHP groups, we can naturally be moral without orders and threats from deties.