"If you outlaw murder people will just find more secretive ways to do it" Sure, but also less murder will happen, there will be enforcement to minimize it, and

"If you outlaw murder people will just find more secretive ways to do it" Sure, but also less murder will happen, there will be enforcement to minimize it, and murder won't be normalized. Likewise: less children will be exposed to porn, law enforcement will be empowered to crack down on shady sites, and children watching porn will no longer be normalized (like it currently is)