Yeah, there’s nothing more objectionable than a law that is not seriously enforced. It need not be perfectly enforced (what law is?), but anything that doesn’t come with real teeth should just be repealed, regardless of the merits
You cannot talk about absurd absasing laws and fixate about enforcement. It is excusing satanism. It is diverting attention. It is "if dystopia is to happen, it would be defensible that it be done seriously".
That depends on the purpose of the individual law. Laws against murder must be enforced as much as possible, but the war on drugs has done a lot of unnecessary damage through excessive enforcement - drugs being illegal would still reduce drug use if that was only lightly enforced. The law is not like a segmentation fault.