Christian/Irish influence
Some evangelical Christians have expressed concern that Halloween is somehow satanic because of its roots in pagan ritual. However, ancient Celts did not worship anything resembling the Christian devil and had no concept of it. In fact, the Samhain festival had long since vanished by the time the Catholic Church began persecuting witches in its search for satanic cabals. And, of course, black cats do not need to have any association with witchcraft to be considered evil — simply crossing their path is considered bad luck any time of year.