Frank your Majesty said:

Don't you want your kids to see you as a role model and follow your example? Or do you let your kids decide for themselves wether they can drink alcohol or not? Or if they can eat then whole bars of chocolate at once? Yes, there is evidence that drinking alcohol and eating too much chocolate is unhealthy, but when it comes to atheism vs. religion there is no proof that one is better than the other, it is all personal opinion.

And that is exactly why you should use your power as a parent in the first instance but not in the second instance. As a parent you should to try to guide your kids away from the things that there is a clear evidence of their harm (i.e. drugs, too much alcohol or sugar). On the other hand, imposing subjective things is wrong (i.e. imposing religion, imposing your tastes in art, etc.).

Frank your Majesty said:

Furthermore, I even think banning nudity and violence from the media wouldn't make Ender happy, since people are still wanting these things. In my understanding, he wants people to realize themselves that these things are not appropriate and no ban would lead to this realization.

According to the paradigm I explained in my previous post, such wish is in a sense potentially even more harmful, as achieving it would require brainwashing.