Cigarette ads are expressly designed to make cigarette smoking appealing and to attempt to entice people to smoke cigarettes. Are you saying that movies "80s and 90s Cop movies" are expressly designed to make cops killing people appealing and attempting to entice people into becoming police officers so that they can kill people?
As to your edit, I have no idea.
Violence is part of drama. It has always been part of Drama. For the love of God Oedipus killed his father and married his mother in the "Oedipus Rex" trilogy of plays by Sophocles. Should that be banned because of its portrayal of family violence?
Drama plays on conflict. Conflict frequently involves violence. Are you claiming that if people don't see violence portrayed in media that violence will be significantly reduced? I believe in strong regulation of firearms but to restrict the portrayal of violence with firearms in dramatic media be it television, movies, youtube videos, or books seems beyond the pale to me.
I absolutely do not want Government to have the power to tell people what they may and may not write. That's where this is going. What can be written if we are going to take the position that anything written may encourage people to do things that we wouldn't want them to do in real life? How can you have any sort of drama if people portrayed only ever do the safe and kind thing. You have to have people doing things that injure or hurt others for drama to exist?