It should be eliminated on all Americans regardless of income. There would be an absolute explosion of capital expenditures. The tax elimination on helping someone under 200k in income would help that person individually. However, that would not help with capital investment in things like new plants and equipment. Those types of capital expenditures come from wealthy individuals and corporate entities. There is nearly 2 trillion sitting on corporate balance sheets at the moment. Just imagine how much cash would be put to work with a Zero cap gains rate across the board. The real risk would be more likely controlling inflation from the increase in monetary velocity.