Well shit, why stop there then? Let’s peel back the FDA and let the state decide what food is safe. Let’s peel back the DMV and just let states decide who is fit to drive and let each state run their own database. While we’re at it, let’s go ahead and lose the IRS and let states collect our taxes up.
Serious question: are you joking or is this sarcasm?
The states can and do regulate food safety. The states, not the federal government, govern motor vehicle licensing. And finally the states do collect taxes. In fact the constitution even permits the federal government to levy an apportioned tax on the states and leave it up to them on how to come up with the money.
Let’s peel back the FDA and let the state decide what food is safe
For many foods, we still do. It's why you sometimes see "Registered with the Pennsylvania Department of Agriculture" printed on packages. (Usually abbreviated to something like "Reg. Penna. Dept. Agr.")
Sometimes particular states set standards that all the other states, or an entire industry, follows.
When they (used to?) give away cars on TV game shows, the announcer always lists "California emissions" in the description of the car.
Federalism just works! (tm)