How do you reconcile this opinion with the knowledge that copycat crime¹ occurs.
One would imagine that an adult with critical thinking skills ought be able to observe that some people are easily influenced at least some of the time. Elsewise we wouldn't be here having this conversation.
Plenty of reactionary assholes have been triggered to violence by disparaged groups having the gall to think of themselves as equals or transgress their taboos against things like interracial marriages. Heck, under that standard we should ban irrational numbers because they caused Pythagorean to drown their discoverer!
It does seem reasonable that there might be scope for regulation at least in the form of viewing guidelines.
I don’t know what that would look like in practice.
There's no perfect answer to this problem, but censoring information just because it might reach a few unstable people is not the way to go.
One example that comes to mind is the film and TV rating system.