Long term investments are not only taxed, they are taxed twice. Once at the corporation's tax rate and again at the capital gains tax rate. Without looking up the specific rate structure, I believe the current U.S. corporate tax rate is typically 35% for anything much more than fairly small companies. The capital gains tax rate is 15%.
If you run the numbers (and I have), the marginal federal tax rate, even including the full payroll tax rate for "low" income workers and the Medicare-only tax rate for "high" income earners, the federal government is getting about 25% of the fruit of your labors and investments if you are around the median income level but well over 40% if you are in the top tax bracket. Now who is it that isn't paying their fair share?
If you run the numbers (and I have), the marginal federal tax rate, even including the full payroll tax rate for "low" income workers and the Medicare-only tax rate for "high" income earners, the federal government is getting about 25% of the fruit of your labors and investments if you are around the median income level but well over 40% if you are in the top tax bracket. Now who is it that isn't paying their fair share?