delaying paying those taxes.
Example with bogus numbers. Instead of having to pay taxes on $100 million right now this year, they take out a loan. They pull $10 million to cover repayments on the loan. So this year instead of paying $50 million+ in taxes, they pay $5 million. The $90 million they didn't have to pull out due to the loan continues to grow exponentially. They continue to get exponentially richer, and continue to delay paying taxes on it.
Not saying I agree with taxing unrealized gains, but this is the "reality" of what they are doing.