Satanism Doesn't Advocate Violence
Contrary to popular belief, Satanism doesn't advocate violence. In fact, by and large Satanism teaches individuals to focus on the self and allow others to be as they are. There's one exception to the rule–revenge. To quote The Satanic Bible, “When walking in open territory, bother no one. If someone bothers you, ask him to stop. If he does not stop, destroy him.” OK then.
Satanism Advocates Freedom of Religion and Separation of Church and State
When Oklahoma put a statue of the 10 Commandments outside its federal courthouse, the Satanic commissioned an enormous statue of Satanic figure Baphomet sitting on a throne, flanked by children, to sit alongside the commandments. Alas, the piece was rejected by Oklahoma, though the state also took down the 10 Commandments in the wake of the controversy.
Satanists See Lucifer as a Symbolic Liberator
Satanists see Lucifer, the historical Satan, as a hero who rejected God to live beyond the bounds of control. Lucifer is a metaphor for every person who chooses a path of freedom above assimilation or subjugation to a system like capitalism, democracy, or, most extreme, fascism.
The Catholic Church Invented Satanism
In the 15th century, the Catholic Church presented a startling claim to the European public—underground groups throughout Christendom were worshiping Satan, attempting to undermine the Church and, even more ominous, the fabric of society. Such Satanists never actually existed. Despite this, and using a book on Satanists written by two priests as its guide, the Church began burning people as witches and devil worshipers. According to the book, entitled Malleus Maleficarum, Satanists were predominantly women, could stop cows from giving milk, rode through the air on broomsticks on their way to orgies in the forest, and ate infants.
Source: Religious Tolerance