There is a proper role of government in "promoting the general welfare" and since few of us farm our own food these days that's why things like the Pure Food and Drug act were passed in 1906 in the wake of the "free market" abuses common at that time. (So what if your food was laden with toxins. Why should you as a dumb consumer need to know that? That would just cut into our profits.)
Unfortunately in recent decades, the FDA, like so many regulatory bodies originally created to serve the public interest, has become a puppet of lobbyists working to serve their corporate paymasters. Monsanto and the tellingly named "Grocery Manufacturers Association" have spent millions of dollars lobbying and working against any attempts to expand labeling laws, especially when it comes to their GMO creations. Why is that? If the stuff were so demonstrably superior as claimed you'd think they'd be proud to advertise that loudly ("Look for the GMO label. Accept no substitute.") This latest "achievement" is another testament to the cozy relationship between the "regulators" and those they supposedly "regulate".
“may be satisfied eating or serving to your children generic “food” without inquiring where it came from or what’s in it, but many others would prefer to know.”
What stops you from knowing?
Nothing. Buy products you know and trust. There are multiple stores that sell organic or food you would be happy with.
There is no need to make even more laws and regulations and government bureaucracy.