When you die your estate has to pay an estate or "death" tax. Republicans coined the term "death" tax and they've been working hard to reduce it. For example, only 2 out of a thousand estates have to pay any estate tax now.
https://www.cbpp.org/research/federa...ral-estate-tax
It's an ideal tax because the person you're taxing is dead and won't care.
Why pass on all that wealth to children who might not be as capable? Redistribute the wealth and let it fall into more able hands.
We can use all that money to ease the tax burden on the poor or for whatever.
Warren Buffet is for this idea.