Or better than that, loans backed by assets above some "jumbo" threshold ($10M?) triggers a capital gain on those assets in the collateral.
So if you get a $150M loan off of your amazon shares that on paper are worth $150M, but you paid $100M, you have a cap-gain of $40M, and at 20% tax, $8M fills the IRS's coffers.
So if you get a $150M loan off of your amazon shares that on paper are worth $150M, but you paid $100M, you have a cap-gain of $40M, and at 20% tax, $8M fills the IRS's coffers.