There will come a time where corporations who don't pay their fair share of taxes in the US will not be allowed to sell in the US. That will make these freeloaders wake up. Trump for President.
It all depends upon what you mean by "fair share".
EG Apple and Samsung both sell their products worldwide and compete head to head in many markets.
If Apple is forced to pay US tax rates because it is an American company while Samsung can get away with paying a much lower rate on its profits there can then only be two outcomes :
1. Apple bleeds market share because they are not price competitive and eventually folds. Having to pay US taxes puts any company at a distinct disadvantage when competing against asian based corporations.
or
2. Apple moves offshore in order to remain competitive.
Either way the US government will lose out.