Lets say you have a t-bill... $10,000 paying 3% interest. That means you net $300 per year income, and lose roughly a third of it to income taxes so you make $200
Now add your 2% asset tax. Now instead of netting $200... you get zip. So why would you invest in a t-bill?
So the Feds have to increase the interest paid on the t-bill in order to attract investors... in this case you would have to raise the interest rate to 6% in order for the investor to make his $200 net. So:
Old: Pay $300, get $100 back in income taxes, paid investor $200
New: Pay $600, get $200 back in income taxes, get $200 back in asset taxes, paid investor $200
Net effect to the Federal government is zero. No matter if the tax is 2% or 10% they are still paying the investor roughly $200.
Now if the Federal government had no debt this picture would be a bit different, but you would still be raising interest rates on everyone else, which is not good for the 99%.