It seems to me that any law that is not enforced and can't be enforced weakens all other laws.

Useless laws weaken the necessary laws.

If you have laws that you don't enforce, then you don't have laws. This leads to lawlessness.

To make laws that man cannot, and will not obey, serves to bring all law into contempt.

Attempts to enforce by legal sanctions, acts obnoxious to so great a proportion of Citizens, tend to enervate the laws in general, and to slacken the bands of Society. If it be difficult to execute any law which is not generally deemed necessary or salutary, what must be the case, where it is deemed invalid and dangerous? And what may be the effect of so striking an example of impotency in the Government, on its general authority?

The whole of the laws which were required to be faithfully executed were being resisted and failing of execution in nearly one-third of the States. Must they be allowed to finally fail of execution, even had it been perfectly clear that by the use of the means necessary to their execution some single law, made in such extreme tenderness of the citizen's liberty that practically it relieves more of the guilty than of the innocent, should to a very limited extent be violated? To state the question more directly, Are all the laws but one to go unexecuted, and the Government itself go to pieces lest that one be violated? Even in such a case, would not the official oath be broken if the Government should be overthrown when it was believed that disregarding the single law would tend to preserve it?

Any law too often subject to infraction is bad; it is the duty of the legislator to repeal or change it.

The more laws a society has, the less justice

There are no good laws but such as repeal other laws.

The Gardener says that mortals often pass laws they cannot enforce in order to be seen as “strong,” or “determined,” even though they know the laws will not solve the problem.

One of the worst things about breaking the law is that it puts one at odds with an indeterminate number of other people. This is among the many corrosive effects of having unjust laws: They tempt peaceful and (otherwise) honest people to lie so as to avoid being punished for behavior that is ethically blameless.

In part because there are so many laws to break; and the more laws there are to break, the harder it is to prevent them from being broken

What is a law, if those who make it
Become the forwardest to break it?

A law without specifics and penalties is not worth the paper it is written on; when it is created as deception, it is far worse than no law.