Okay, I'll bite. Here is an alternative. Make it illegal for any "news" agency to publicly name the group or individual that commits any "terrorist" act. Make it a multi-million dollar fine per instance. We need to stop giving these people their 15 minutes of fame or infamy. All coverage must be about the victims only.
We also need to collectively care about stopping extremism with other approaches. One thing that is that most people who commit these heinous acts have reached a point where their lives have to perceived value. They are then easily radicalized. (See blue collar America blaming all their jobs lost to automation on Mexicans) People who have money for their family and are generally happy don't go around killing for some cause. Addressing wealth inequality can help.
The challenge of supporting this kind of "good censorship" is always who will watch the watchers? What passes for terrorism in the US is different than in a country like Russia or North Korea or .... A lot of people (even in the US) are very careful about what they post on socials. What happens if people who attack a certain viewpoint or organization are suddenly declared "evil" and the cause of all our ills? Is someone on a bowling team with a closet Nazi or KKK member also guilty? You only need to look back at McCarthyism to see how easily "good" people can be weaponized into something terrible.