Is the current U.S. taxation system good?

The major reason that the IRS Code is so complex, is that our economy is so complex. The law has to cover every type of transaction and source of income. It has to cover employees, self employed, partnerships, corporations, and others. In the stock market, it has to cover puts, calls, selling short, long term, short term, wash sales, options, commodities, and whatever else I missed. It also has to cover every type of reasonable business expense.