But that's the problem isn't it. All states are not equal. Far from it. We have fairly poor states and pretty wealthy states, and unless we want to give up our 'United' moniker, and just be 'The Various States of North America', there are many things that need to be standard, across all the states. That 's the beauty of the US. That's what makes us desirable to us and to the world. This is a very big country with loads of regional flavor and dialects, but everyone knows that if you drive from California to Vermont, you will have the same standards in food safety and labeling, auto safety standards, education standards, etc..
If you buy your car insurance in California but have an accident in Vermont, you're covered. The police will protect you in both places and the hospitals will treat you in either place, even if you don't have coverage! And the hospital capability care (because of course there are differences from hospital to hospital, even in the same city) will be equal.
Really, which standards/programs/policies would you transfer from the feds to the states? Right now? Let's pick one that many people talk about. Education. Sure, it's easy to say let each state make their own standards. No skin off your nose, you live in a state that actually believes the world is round and revolves around the sun. Who cares if Mississippi is anti-science and teaches that the world is only 5 thousand years old? Well, what if your daughter marries someone from Mississippi and they move there. Your grand kids will be raised and taught there. Suddenly Mississippi's standards are very important, even though you don't live there. And that also decreases your pool of competent work force for your progressive modern business. And all the progressive modern businesses in the country, bringing the country down with it. A chain is only as strong as it's weakest link.
So what other things would you transfer to the states? I'm curious.