If Chesterton's fence doesn't have a working latch, then it's appropriate to remove it entirely.
Or, conversely, important things may have been relying on access via the latch-free fence gate: fixing the latch without providing a more appropriate solution to those issues could cause more harm than the benefit you get from "now the fence actually functions as a barrier". (Sure, the latch keeps the wolves out, and stops them picking off the sheep – but it also keeps the sheep away from their only freshwater source, without which most of the sheep are going to die.)
So uhhh, maybe we think in reality instead of offloading to metaphor.
we also know for a fact that the FDA lets unsafe and ineffective drugs into the market, especially from overseas, slapped with a label that its safe according to the FDA. if its a crapshoot, what's the point really?
99.99999% of drugs ever created are unsafe or ineffective.
99%+ of the drugs you will ever encounter in your life are both safe and effective.
That is not a crapshoot. Obviously.
https://www.propublica.org/article/fda-drug-loophole-sun-pha...
Despite its failures (however many you want to point out), our regulatory regime converts a pipeline of almost universally ineffective and/or dangerous compounds into a marketplace of almost universally safe and/or effective compounds. This is a fact.
Unless you think no one is trying to, would try to, or would deceive themselves into accidentally releasing a dangerous or ineffective compound to consumers?