People will always be mugged by thugs who are stronger than them, so let’s get rid of all assault laws and shrug because nothing can be done right?
In fact, perhaps a law that prohibits you to get mugged in the first place is in order.
A law against fraud is like a law against mugging, you cannot commit fraud and you cannot mug. Both pretty clear and reasonable. But a law against trading because you might get scammed is like a law against getting mugged: YOU ARE NOW FORBIDDEN TO GET MUGGED, problem solved!
Of course people, because they are good hearted and their intentions are so pure, often fail to see the difference. After all, how can anyone be against a law prohibiting mugging?!