We never said a sign on a bathroom door will stop a pedophile, but if rules were enforced by people that actually give a f**k, pedophilia would be a lot less common
And, there is a such thing as a "dark web" and a "black market" where crooks can operate right under the government's nose and there isn't much they can do since the crooks' IP address is hidden or changed when they go on the dark web.
I guess what I'm trying to say is, there isn't much we can do about pedophilia, just like there isn't much we can do about mass shootings, so why take away everyone's guns for the actions of a few. On what planet is that fair, since the crooks would still have access to guns from the black market.
Your argument is therefore invalid