The population as a whole in Europe and America believes in witchcraft too.
Or in homeopathy, crystals, stainless steel/copper/magnetic bands, horoscopes, biorhythms, hypnotherapy, vitamin C for colds, crop circles, that the US government keeps aliens at Area 51, the evil of vaccinations, and many, many, many other things that are on the same level of credulousness.
(Then, of course, there's the fact that many people in Europe and America literally believe in witchcraft due to their religion.)
Of course, they're generally better educated, so they have a lot less excuse.
Or in homeopathy, crystals, stainless steel/copper/magnetic bands, horoscopes, biorhythms, hypnotherapy, vitamin C for colds, crop circles, that the US government keeps aliens at Area 51, the evil of vaccinations, and many, many, many other things that are on the same level of credulousness.
(Then, of course, there's the fact that many people in Europe and America literally believe in witchcraft due to their religion.)
Of course, they're generally better educated, so they have a lot less excuse.