So, about 30% as you said. If you assume that the taxes need to be paid regardless and the the revenue made from those with much higher compensation is mostly just stolen wages, then its fair to say that the burden of those taxes would also need to be shifted to those workers if they take back all of those stolen wages. I don't think the assumption those taxes all need to be paid is necessarily true and most of it would naturally happen as workers rise into higher tax brackets and the SD becomes smaller compared to total compensation. This also still has the problem of assuming GDP is a fixed value.
US debt clock does include total worker compensation at 14.5 trillion, out of the total US GDP of 27 trillion. Not sure exactly what they are including in that. Not do they seem to have the number for previous years.