Depends on your definition.
Is someone performing what they believe to be magical rituals a witch? Then almost certainly at least some of those accused were guilty.
Is a witch someone who actually meets the Devil in person, has sexual intercourse with him, and in return receives actual magical powers? Then almost certainly there have never been any "real witches" anywhere.
I've always thought the witch hunters faced an unfortunate logical dilemma. If the witches really did have magical powers, why didn't they use them to escape?Is someone performing what they believe to be magical rituals a witch? Then almost certainly at least some of those accused were guilty.
Sorry for the typo. Not sure what happened.
Long before the United States was founded and religious liberty protected (even for witches).
On what basis should a contemporary government forgive the convictions of those tried under an earlier government's legal system hundreds of years ago?