Dangerous according to you though but also every knife is dangerous if the intent is to injure.
Do you not understand that a big machete or zombie knife is more dangerous than a butter knife if the intent is to injure?
This is perhaps the same issue people have with dogs, sure a butter knife can be dangerous in the hands of a bad person, as can a Pug... but really a pitbull-type dog like a bully XL is rather more concerning.
So while it's nice to hope that you can just educate people and make them not bad people it's perhaps also a good idea to not allow big knives onto the street or indeed dog breeds that are just a huge outlier in terms of the deaths and serious injuries they cause.