The politically viable argument is that it will create jobs, and is indeed false.
The serious, economic argument is that companies shouldn't have to keep profits abroad simply because of a screwy, distortive tax system at the international level. And it is a valid concern.
(Before anyone says it, yes, I'm aware that some taxes, by design, distort behavior in a socially desirable direction. Differential corporate taxes at the international level ain't one of them.)
It's not so much about the level of taxes as it is about taxing foreign income, which is not something that other countries do, giving a competitive disadvantage to the US.
Even if Apple brings back the cash and dividends it out, that's more money in the pockets of shareholders, which are pretty much everybody with an index fund, pension funds, mutual funds, etc. That can't hurt the US compared to leaving the cash abroad.
Many other countries tax overseas profits, and many of the ones who don't, have very strict rules about foreign ownership to assure they aren't being gamed. The G20 is fairly united on this front.
The serious, economic argument is that companies shouldn't have to keep profits abroad simply because of a screwy, distortive tax system at the international level. And it is a valid concern.
(Before anyone says it, yes, I'm aware that some taxes, by design, distort behavior in a socially desirable direction. Differential corporate taxes at the international level ain't one of them.)