I never said they "can't", I said they shouldn't. Also, there's nothing fundamentally wrong with citing something as an example in the argumentation around a b

I never said they "can't", I said they shouldn't. Also, there's nothing fundamentally wrong with citing something as an example in the argumentation around a bill enacting a law (unless it's by way of targeting them with polemic), but there is something fundamentally wrong with putting that in the legal code itself.