It goes without saying that this absolutely will not pass constitutional muster.
You can categorically try to ban pornography but the second you try to ban it based on its content and not based on it being pornography you no longer have a leg to stand on.
I wish there were some way to have criminal consequences for deliberately passing unconstitutional laws. It definitely feels like it's some kind of sedition, violating your implicit or explicit oath of office so profoundly.