I am one of the Satanist who strongly oppose the philosophy which is attributed to Howard Stanton Levey (a.k.a Anton Lavey) his church, and his bible which is a paraphrase of collage from Ragnag Redbeard's book "Might is Right", along with some Christian Magick from the book of Abramelin the mage and the middle age gromoires which are most of them, a distortion of True Magick or Sorcery created in order to be accepted by the church of the Nazarene.
Its rituals are childish and ineffective, anybody with real experience in the occult knows it is absurd to command the Forces of Darkness, since man imprisoned in this clayborn shell is an insignificant creature before the eyes of Death and the Devil.
Laveyanism as it is taught by the Church of Lavey, nowadays is completely atheistic, creating the oxymoron "atheistic satanism". There is No Satanism without Satan, the Master.
The major problem with the church of Lavey and similar organizations, and individuals who confuse Magick, Sorcery, Left Hand Path or any other ideology/philosophy with Satanism. These wrong concepts often originate on the lack of apprehension:That Satanism is founded on Satan, not on the ego or the self. the Satanist put his or her devotion, the burning will to fulfill the Will of Satan above everything. Family, Carnal pleasures, fame, material possessions...even our own lives are meaningless. As it is stated on the slogan of our Cathechism, on the gnostic gospel of Jhon 12;25
Laveyanism was created to promote "Lavey" himself and the use of inverse christianity, which is Laveyanism to me, was used to create a shocking impact in the mind and consciousness of the masses of the age.
The Use of the sacred symbols of the occult in its dark aspect within Laveyanism was and it is used to sell that egostical animalistic ideology as part of the "alternative religions". I personal find the use of the sacred symbols of Master Satan, by materialists and atheists to be disrespectful.
Various people think that Laveyanism is a tool to purify the individual from the indoctrination of the Abrahamic Religion, of which i disagree, because a person who centers himself or herself on the Ego and Materialism is far more difficult to accept Satan and his Demons than which is for a pagan, witch, hougan, occultist...
Neither i believe that the daily life or the great work of the Satanists would be better by living in a world inhabited by atheists. Our adversrial stand against the abrahamic religions or any manifestation of the dreaded Demiurge, helps to give momentum and power to our Black Flames, as we fight the cause of the One and Unknown God. The Stigma of the Master, we carry with pride in this illusory world of veils of Maya, that we pierce with the trident of the inferno.
Laveyanism promotes the same dualistic view of the abrahamic or mystical religions, which try to put spirit over Matter. As explained in our Philosophy of Oneness " Polyharmonia" both matter and spirit are equal important, one cannot be put above the other, since both spirit and matter" are just ends of the same stick. Energetic manifestation vibrating at different levels of rhythm and resonance.
Another aspect is the odious, brutish minded practice of teh Laveyans and the so-called Left Hand Pathers of telling/ordering others that "worshiping Satan" is some kind of Sin, or their magick or sorcery works including their daily lifes will be ill affected, if people worship Satan His demons or anything besides the self.
Concerning, the obscure topic of witches or 'satanists" eating babies, it is well known that behind every tale or myth there is a spark of truth. The concept of the profane of witches "eating Babies" is hoax, if understood literally. What is true is that as part of the Black Magick, witchcraft and Vampyrism, the devouring of the pranic energy is practiced and comes since ancient civilations, such as the egyptian practices of the followers of Sekhmet to devour the "Bha/Akh" or soul. This practiced was continued by the witches on more recent times, what they do is, on a form of astral traveling is to send their "Khabit" or shadow on predatory acts. Babies or young ones it is well known possess great amount of pranic energy, thus it probably included as part of the practices. I.E. The tales of my spanish ancestors is full of stories about babies falling ill or diying by suppossed witches attracts. Nowadays obscure practices such those found within the Voodoo Bokhors, Brazilian Tatas, Philippine Makunkunlan, Energetic Vampires...are supposed to devour "souls" as part of their Path.
Finally, concerning the topic of Laveyanism, I must say that personally, Laveyanism and such materialistic or Hedonistic ideologies, opposes in great part to the foundations of my believes on the "Necrosophia" Death, as the ultimate form of self-indentification, Death the ultimate anticosmic/antidemiurgic Power, The Luciferian Gnosis that Master Lucifer the bright-side of Satan stands for the Death of matter and ascension of spirit, as the fumes that arises from organic matter when decomposing.
My soul for His glory ! Ad Maiorem Satanas Luciferi Gloriam !