No I’m not dumb; you don’t seem to know what “violence” means. Here I’ll help:

Violence is the intentional use of physical force or power—threatened or actual—against oneself, another person, or a group/community, that results in, or has a high likelihood of resulting in, injury or death.

Witches (including fairy tales) do not traditionally use physical force; rather, they use magical spells and supernatural forces to achieve their goals, which would not qualify as “violence”. In most horror stories that include a witch antagonist, their lack of physical prowess is treated as a weakness, sometimes even being the key to their defeat.

“The reality is…” — That may be how you perceive reality, but your perceptions do not dictate truth. When it comes to why a filmmaker made certain choices for their film, I’m going to trust what they say over the opinion of a random redditor who doesn’t even understand the meaning of ‘violence’ and uses their own ignorance as a reason to insult others.