Here's a question: Why don't we make offshoring profits illegal?

So we all know now--no surprise, really--that Mitt Romney has millions of dollars in offshore accounts in the Cayman Islands even though he's running for the presidency of the United States. It doesn't seem very patriotic or supportive of the nation, does it? But the thing is, the only reason offshoring profits is legal is because the wealthy people and corporations that wanted it, that would benefit from it, gave "campaign contributions" to their representatives in Congress so naturally, their representatives created legislation allowing it. Done and done. The thing is, it's not good for the country, for us, the United States of America. We know now why it exists. Why don't we now push to make this corporate and wealthy person's obscenity illegal? I think it's a good and valid question. I also think we, the people, should pursue just that. Link: http://news.yahoo.com/romney-parks-millions-offshore-tax-haven-160547876--abc-news.html