I know a real case of horse meat sold as beef in UK and they have lots of regulations (including the EU on top of local). You can put all the rules and laws in the book, but don't just relax and hope all will be obeyed. As some SCOTUS decision stated a while ago, some laws and regulations are made so dense and confusing it is almost impossible to comply to the letter - they were talking about something as simple as driving a car on a public road.
In any case there are other areas of regulation, such as environmental protection. What will happen when those are relaxed?
It has many advantages compared to a system where the government to literally pre-define every single thing in the economy and create specific regulation and test procedures for it, even if in most cases these things are not needed.
Acting like the world of judicial regulation (which takes years and lots of money to see through) was somehow better seems like rose-colored glasses. Whether the FDA’s scope should be adjusted is a different discussion.
Food quality was improving before FDA was established and continued rising after as well. Most quality improvement is driven by consumer demand that was the case before and after FDA.
Your mention of “quality improvement” is another slight of hand as that’s not really the FDA’s purpose nor do you support it with sources. Show some data for food (and drug) safety preceding and following the FDA and we can discuss.
I think everyone belives this.
The challenge has always been finding the most useful laws, as well as preventing special interests and rent seeking.
The devil is always in the details. Every regulation is different.
If you look at British Common Law many of these problems have legal precedents that would be evolved based on real world cases.
This is what economist like Armen Alchian, James M. Buchanan, F.A. Hayek and many others have been arguing and researching for decades.
There are of course criticism to that approach, but to just dismiss it as if it didn't exist is not fair.
Go look at how complex topics were handled in common law, often with very good understanding and solutions.