At a 9% nominal return, that would imply an after tax return at a 40% rate of 5.4%. Then take out inflation of 2%, and you get a 3.4% real return on stocks. Which, if you consider the risk is pretty terrible. So would expect markets to reflect that divergence of risk/return that this bill would introduce and lead to a massive stock market sell-off.

Kiss your 401(K) good bye! Genius plan.