Mostly people who were just unpopular, a mixture of townsfolk, poor people, the occasional member of the local bourgeoisie. It was a mass hysteria issue, sort of like the satanic panic, or anti-vaxxers, there were religious tensions with the reformation, it was during a mini ice age that made weather unpredictable which made harvests unpredictable and thus people vulnerable to disease. People were just kinda stressed and took it out on people they didn’t like
They’ve been blown out of proportion but also misattributed in a way that obscures what we actually need to learn from them, which is the danger of mass hysteria.
Not to mention the “pagan genocide” theory was encouraged by Himmler as a “you’re bad too” thing. www.tandfonline.com/doi/abs/10.1080/01639625.1989.9967814#/doi/abs/10.1080/01639625.1989.9967814
But like mostly it’s a reminder to take some deep breaths and really think about what you’re doing before you accuse someone of being in league with Satan