You'll have to give us a link to support your assertion that there is $30 trillion in foreign tax havens.While people are complaining about getting over taxed, they forget that wealthy elites use foreign tax havens to shelter their resources. It is a fact that they have well over $30 trillion that go tax free. Reform the Tax Code and your annual tax bill will go downward considerably.
Here's a link that says the total wealth of our Billionaires is about $4.1 trillion.
Billionaires
And, since about half of Americans don't pay any tax, how will their "tax bill go downward considerably"?