If you try to bottle the genie back up, you'll have to work all those levers simultaneously or you'll have the problems you describe. The new set of regulations would also need to curtail the ability of corporations to move to avoid regulations and limit the kinds of political pressure they can apply, for instance. Otherwise it'll be like closing one barn door while leaving the other wide open.
We've gone so far down the road in one direction that we may have to turn around with a shock. It it's probably too late for some kinds of small, incrementalist course corrections to be effective.
Personally, I don't see the rest of the world as willing to indulge in that type of regulation havening. Besides which, where else are you going to find the combination of hypermodern physical infrastructure, relatively stable political/judicial systems, and the fiscal infrastructure to support these types of businesses all bundled together?
It seems to end up being a puck-two sort of thing otherwise, and if they did move out, they'd likely have to instantly write off the American market, as such a drastic measure would not go unnoticed. It starts to reek of nationalistic pride as the insurance policy, but history didn't build itself up without such a thing in the first place; so I see it as foolish to discount the mechanism moving forward.
One can only hope the cost in blood to maintain such security won't have to be repeated however.
Yet every year our economy grows and our quality of life improves.
If businesses leave, they're the type of business you wouldn't want around anyway.