2/3 (sorry for the confusion with the numbering)
in a case law setting, (contracts for example) if i give you two cows for 5 chickens, and i get 4 chickens, i would bring it to the king who would make you give me the other chicken. In this case ANOTHER PARTY is harmed. its wrong because i was harmed.
back to OPs meme. case law is good because it allows you to understand what you can and cant do when other people are ACTUALLY harmed in some way. it allows you to know how the courts/people adjudicating disputes will decide
conversely, regulatory laws serve no true purpose other than to attempt to control, as OP's meme points out.
>criminals break laws so why have them
its an excellent point; regulatory laws dont control people, and neither do judicial laws for that matter. the difference being judicial laws stem from someone actually being harmed
traffic laws are somewhat confusing because they are used to determine who is at fault in court (judicial) but they APPEAR to be regulatory (i.e. "dont do X, Y , or Z") but they really stem from case law, adjudicating the dispute of an accident. (there were no driving rules when cars were first being driven)
so to anwser OP's meme, it shows a lack of understanding of man made laws in general. it asks why have regulatory laws (which is right, they dont serve a useful purpose) and cites traffic laws as the basis for comparison (which is incorrect)
case law= good = rules that come about DIRECTLY from disputes (traffic, contract, fraud, violence, etc)
regulatory laws = bad = "its wrong because i say so" (gun laws, drug laws, etc.)
>but guns lead to violence
>drugs lead to violence
the flaw in that argument is that the result is too tenuous. VIOLENCE is wrong under any context besides self defense. lots of murders are over sex, but you dont want that banned, do you?