If God took away a murderers ability to murder, this would inhibit his free will. Similarly, if you removed all drugs from a drug addict, he would, by necessity, become drug free. It comes down to one thing: free will. Give a man a choice to steal, he will decide based on his own free will. Give the youth the choice to listen to immoral music or look at porn, and they will decide based on his own free will. If we censor media that is unjust by removing it totally, the people of the society will grow weak because they have not exercised their conscience or free will. Would it not be better if our society was made up of people who daily chose to set aside their fleshly urges in order to be just?