This is a red herring that politicians love to try and justify huge tax rate cuts for businesses that are unnecessary but provide a good sound bite. Tax rate cuts that they already enjoy because the US government allows them to stash the cash overseas already to avoid the taxes.
A US citizen is forced to pay income tax on all income worldwide. Live in France, pay French taxes and US income tax on income over $72,000. And you only get the $72k break if you are in the country less than 30 days in a calendar year.
US corporations, on the other hand, can stash all overseas earning overseas to reduce their tax liability. Most US corporations already pay a lower effective tax rate than most US citizens.