Since we are wandering around with new subjects.
I am conflicted about estate taxes, I can see each side.
While it is not often enforced with vigor, we do recognize that business monopolies are not in the public interest. The oil company that I retired from was a splinter, from the Standard Oil empire of J.D. Rockefeller.
If a business entity can become too large, it makes sense that individual estates can become large enough, to no longer be in the public interest. I have no real idea where that line is.
There are examples of very wealthy people realizing that their heirs do not need or perhaps deserve to inherit all of an estate. Off the top of my head, Bill Gates, Warren Buffet, Bezos' ex wife Mackenzie Scott, have given large amounts of money to charitable causes.