The Satanic Church is technically atheistic and super chill.
Actual Satanists tend to be chill as well. Or at the very least, entirely self oriented. I.e., they keep to themselves and focus entirely on their own happiness and hedonism. This is true of most Left Hand Path religions.
As for right hand paths, Paganism, Wicca, New Age, etc, we stick to ourselves and our groves/covens/heathenries as well. There's always a couple of eco terrorists among the New Agers, but that's about it.
One of the standard refrains of faiths like these are anti-evagelical. We don't preach to convert.