That will never happen, a value added tax, I think a flat tax would be an easer sell, but you are correct that the Byzantine style of taxation in the US does hinder many things.
That said, is there any developed nation that is based on a Value Added tax? I can not think of any off hand.
The Value-Added Tax is NOT the solution to anything. It amounts to just another hidden form of taxation, prone to tinkering by politicians with little accountibility.
A retail sales tax is the only viable and sensible solution.