this is because of perception Bias. people working in fields where crime or violence is the day to day think everyone is a violent criminal, so if things like this become available thing the world will end and everyone will kill eachother. Reality however will be different, because in reality most people do not want to harm another. This has been proven by many studies, that is not a common thing for people to be evil or harmful, but this is hard to recognise is every day is filled with crime and violence.

LLMs will not kill security, it will change. just like handheld high explosives likely changed a deal too somewhere somehow.